./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-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:35:28,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:35:28,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:35:28,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:35:28,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:35:28,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:35:28,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:35:28,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:35:28,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:35:28,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:35:28,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:35:28,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:35:28,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:35:28,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:35:28,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:35:28,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:35:28,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:35:28,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:35:28,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:35:28,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:35:28,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:35:28,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:35:28,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:35:28,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:35:28,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:35:28,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:35:28,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:35:28,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:35:28,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:35:28,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:35:28,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:35:28,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:35:28,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:35:28,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:35:28,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:35:28,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:35:28,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:35:28,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:35:28,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:35:28,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:35:28,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:35:28,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:35:28,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:35:28,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:35:28,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:35:28,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:35:28,578 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:35:28,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:35:28,578 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:35:28,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:35:28,585 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:35:28,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:35:28,586 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:35:28,586 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:35:28,586 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:35:28,587 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:35:28,587 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:35:28,587 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:35:28,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:35:28,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:35:28,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:35:28,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:35:28,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:35:28,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:35:28,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:35:28,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:35:28,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:35:28,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:35:28,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:35:28,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:35:28,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:28,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:35:28,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:35:28,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:35:28,593 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:35:28,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:35:28,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:35:28,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:35:28,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:35:28,594 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_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2021-11-12 22:35:28,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:35:28,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:35:28,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:35:28,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:35:28,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:35:28,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 22:35:28,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/d64a0ce2a/37730d4ac4d34898bff2b8e40a99367d/FLAGb5e493661 [2021-11-12 22:35:29,944 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:35:29,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 22:35:30,026 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/d64a0ce2a/37730d4ac4d34898bff2b8e40a99367d/FLAGb5e493661 [2021-11-12 22:35:30,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/d64a0ce2a/37730d4ac4d34898bff2b8e40a99367d [2021-11-12 22:35:30,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:35:30,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:35:30,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:30,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:35:30,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:35:30,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:30" (1/1) ... [2021-11-12 22:35:30,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e20246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:30, skipping insertion in model container [2021-11-12 22:35:30,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:30" (1/1) ... [2021-11-12 22:35:30,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:35:30,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:32,609 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:32,613 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:32,742 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:32,744 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:32,790 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:32,791 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:35:34,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-12 22:35:34,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-12 22:35:34,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-12 22:35:34,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-12 22:35:34,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:34,160 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:35:34,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@26d5d2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34, skipping insertion in model container [2021-11-12 22:35:34,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:34,161 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:35:34,164 INFO L158 Benchmark]: Toolchain (without parser) took 3856.97ms. Allocated memory is still 125.8MB. Free memory was 96.2MB in the beginning and 60.9MB in the end (delta: 35.3MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2021-11-12 22:35:34,165 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 92.3MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:35:34,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3854.56ms. Allocated memory is still 125.8MB. Free memory was 96.2MB in the beginning and 60.9MB in the end (delta: 35.3MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2021-11-12 22:35:34,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 92.3MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3854.56ms. Allocated memory is still 125.8MB. Free memory was 96.2MB in the beginning and 60.9MB in the end (delta: 35.3MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7445]: 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_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:35:37,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:35:37,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:35:37,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:35:37,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:35:37,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:35:37,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:35:37,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:35:37,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:35:37,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:35:37,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:35:37,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:35:37,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:35:37,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:35:37,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:35:37,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:35:37,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:35:37,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:35:37,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:35:37,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:35:37,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:35:37,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:35:37,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:35:37,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:35:37,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:35:37,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:35:37,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:35:37,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:35:37,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:35:37,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:35:37,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:35:37,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:35:37,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:35:37,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:35:37,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:35:37,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:35:37,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:35:37,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:35:37,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:35:37,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:35:37,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:35:37,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:35:37,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:35:37,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:35:37,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:35:37,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:35:37,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:35:37,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:35:37,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:35:37,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:35:37,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:35:37,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:35:37,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:35:37,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:35:37,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:35:37,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:35:37,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:35:37,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:35:37,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:35:37,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:35:37,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:35:37,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:35:37,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:35:37,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:35:37,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:35:37,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:35:37,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:37,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:35:37,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:35:37,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:35:37,292 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:35:37,292 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:35:37,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:35:37,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:35:37,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:35:37,293 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_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2021-11-12 22:35:37,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:35:37,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:35:37,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:35:37,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:35:37,834 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:35:37,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 22:35:37,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/b0149b800/d1c13ae3001844fc8598d1253ee25860/FLAG8ce891f2a [2021-11-12 22:35:39,297 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:35:39,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 22:35:39,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/b0149b800/d1c13ae3001844fc8598d1253ee25860/FLAG8ce891f2a [2021-11-12 22:35:39,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/data/b0149b800/d1c13ae3001844fc8598d1253ee25860 [2021-11-12 22:35:39,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:35:39,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:35:39,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:39,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:35:39,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:35:39,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:39" (1/1) ... [2021-11-12 22:35:39,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73422afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:39, skipping insertion in model container [2021-11-12 22:35:39,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:39" (1/1) ... [2021-11-12 22:35:39,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:35:39,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:43,429 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-12 22:35:43,432 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-12 22:35:43,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-12 22:35:43,433 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-12 22:35:43,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:43,517 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:35:43,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:43,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-12 22:35:43,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-12 22:35:43,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-12 22:35:43,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-12 22:35:43,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:43,971 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:35:44,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2021-11-12 22:35:44,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2021-11-12 22:35:44,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2021-11-12 22:35:44,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2021-11-12 22:35:44,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:44,707 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:35:44,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44 WrapperNode [2021-11-12 22:35:44,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:44,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:44,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:35:44,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:35:44,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:44,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:45,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:35:45,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:35:45,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:35:45,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:35:45,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:35:45,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:35:45,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:35:45,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (1/1) ... [2021-11-12 22:35:45,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:45,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:45,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:35:45,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:35:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-12 22:35:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-12 22:35:45,601 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-12 22:35:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-12 22:35:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-12 22:35:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:35:45,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:35:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:35:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:35:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-12 22:35:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-12 22:35:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-12 22:35:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-12 22:35:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-12 22:35:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-12 22:35:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:35:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:35:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-12 22:35:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-12 22:35:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:35:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:35:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:35:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:35:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:35:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:35:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-12 22:35:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-12 22:35:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:35:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:35:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-12 22:35:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-12 22:35:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-12 22:35:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-12 22:35:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-12 22:35:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-12 22:35:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-12 22:35:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-12 22:35:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:35:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:35:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-12 22:35:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-12 22:35:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:35:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:35:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:35:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:35:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 22:35:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 22:35:45,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-12 22:35:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-12 22:35:45,610 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:35:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:35:45,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:35:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:35:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:35:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 22:35:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 22:35:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-12 22:35:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-12 22:35:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:35:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:35:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:35:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:35:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:35:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:35:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-12 22:35:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:35:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:35:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:35:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:35:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:35:45,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:35:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:35:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:35:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-12 22:35:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-12 22:35:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-12 22:35:45,615 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-12 22:35:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:35:45,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:35:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:35:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:35:45,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:35:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:35:45,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:35:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-12 22:35:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-12 22:35:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-12 22:35:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-12 22:35:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-12 22:35:45,617 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-12 22:35:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:35:45,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:35:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:35:45,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:35:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:35:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:35:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:35:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:35:45,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:35:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:35:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:35:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-12 22:35:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-12 22:35:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-12 22:35:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:35:45,620 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:35:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:35:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:35:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:35:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:35:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 22:35:45,621 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 22:35:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:35:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-12 22:35:45,622 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-12 22:35:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:35:45,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:35:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-12 22:35:45,622 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-12 22:35:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:35:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-12 22:35:45,624 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-12 22:35:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:35:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:35:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:35:45,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:35:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:35:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-12 22:35:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-12 22:35:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-12 22:35:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:35:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:35:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:35:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-12 22:35:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-12 22:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-12 22:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-12 22:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2021-11-12 22:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2021-11-12 22:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-12 22:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-12 22:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 22:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 22:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-12 22:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:35:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:35:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:35:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 22:35:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2021-11-12 22:35:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:35:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-12 22:35:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 22:35:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-12 22:35:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-12 22:35:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:35:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:35:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-12 22:35:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-12 22:35:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-12 22:35:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-12 22:35:50,254 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:36:16,298 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:36:17,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:36:17,211 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:36:17,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:36:17 BoogieIcfgContainer [2021-11-12 22:36:17,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:36:17,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:36:17,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:36:17,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:36:17,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:35:39" (1/3) ... [2021-11-12 22:36:17,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32431ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:36:17, skipping insertion in model container [2021-11-12 22:36:17,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:44" (2/3) ... [2021-11-12 22:36:17,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32431ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:36:17, skipping insertion in model container [2021-11-12 22:36:17,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:36:17" (3/3) ... [2021-11-12 22:36:17,225 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-12 22:36:17,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:36:17,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:36:17,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:36:17,298 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:36:17,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:36:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 1996 states, 1342 states have (on average 1.3002980625931446) internal successors, (1745), 1382 states have internal predecessors, (1745), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) [2021-11-12 22:36:17,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 22:36:17,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:36:17,368 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:36:17,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:36:17,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:36:17,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1553828359, now seen corresponding path program 1 times [2021-11-12 22:36:17,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:36:17,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031199414] [2021-11-12 22:36:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:36:17,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:36:17,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:36:17,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:36:17,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:36:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:36:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:36:19,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:36:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:36:19,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:36:20,212 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:36:20,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031199414] [2021-11-12 22:36:20,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031199414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:36:20,213 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:36:20,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:36:20,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156605172] [2021-11-12 22:36:20,215 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:36:20,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:36:20,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:36:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:36:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:36:20,260 INFO L87 Difference]: Start difference. First operand has 1996 states, 1342 states have (on average 1.3002980625931446) internal successors, (1745), 1382 states have internal predecessors, (1745), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:36:22,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:36:30,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:36:30,158 INFO L93 Difference]: Finished difference Result 7748 states and 11340 transitions. [2021-11-12 22:36:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:36:30,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2021-11-12 22:36:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:36:30,235 INFO L225 Difference]: With dead ends: 7748 [2021-11-12 22:36:30,236 INFO L226 Difference]: Without dead ends: 5756 [2021-11-12 22:36:30,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:36:30,267 INFO L933 BasicCegarLoop]: 3921 mSDtfsCounter, 7148 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1061 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8228.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7148 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.13ms SdHoareTripleChecker+Time, 1061 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9212.11ms IncrementalHoareTripleChecker+Time [2021-11-12 22:36:30,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7148 Valid, 8327 Invalid, 2204 Unknown, 0 Unchecked, 63.13ms Time], IncrementalHoareTripleChecker [1061 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 9212.11ms Time] [2021-11-12 22:36:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-11-12 22:36:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5729. [2021-11-12 22:36:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 3880 states have (on average 1.2945876288659794) internal successors, (5023), 3996 states have internal predecessors, (5023), 1586 states have call successors, (1586), 261 states have call predecessors, (1586), 260 states have return successors, (1582), 1540 states have call predecessors, (1582), 1582 states have call successors, (1582) [2021-11-12 22:36:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8191 transitions. [2021-11-12 22:36:30,804 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8191 transitions. Word has length 116 [2021-11-12 22:36:30,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:36:30,805 INFO L470 AbstractCegarLoop]: Abstraction has 5729 states and 8191 transitions. [2021-11-12 22:36:30,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:36:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8191 transitions. [2021-11-12 22:36:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 22:36:30,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:36:30,810 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:36:30,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:36:31,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:36:31,034 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:36:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:36:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1683937794, now seen corresponding path program 1 times [2021-11-12 22:36:31,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:36:31,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355065075] [2021-11-12 22:36:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:36:31,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:36:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:36:31,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:36:31,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:36:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:36:33,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:36:33,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:36:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:36:33,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:36:33,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:36:33,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355065075] [2021-11-12 22:36:33,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355065075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:36:33,728 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:36:33,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:36:33,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696729608] [2021-11-12 22:36:33,729 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:36:33,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:36:33,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:36:33,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:36:33,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:36:33,731 INFO L87 Difference]: Start difference. First operand 5729 states and 8191 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:36:35,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:36:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:36:40,182 INFO L93 Difference]: Finished difference Result 20288 states and 28816 transitions. [2021-11-12 22:36:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:36:40,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2021-11-12 22:36:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:36:40,325 INFO L225 Difference]: With dead ends: 20288 [2021-11-12 22:36:40,326 INFO L226 Difference]: Without dead ends: 14580 [2021-11-12 22:36:40,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:36:40,375 INFO L933 BasicCegarLoop]: 3994 mSDtfsCounter, 4765 mSDsluCounter, 5703 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5251.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4765 SdHoareTripleChecker+Valid, 9697 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.70ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5665.92ms IncrementalHoareTripleChecker+Time [2021-11-12 22:36:40,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4765 Valid, 9697 Invalid, 822 Unknown, 0 Unchecked, 36.70ms Time], IncrementalHoareTripleChecker [9 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 5665.92ms Time] [2021-11-12 22:36:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14580 states. [2021-11-12 22:36:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14580 to 14513. [2021-11-12 22:36:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14513 states, 9955 states have (on average 1.2924158714213962) internal successors, (12866), 10266 states have internal predecessors, (12866), 3834 states have call successors, (3834), 752 states have call predecessors, (3834), 721 states have return successors, (3860), 3653 states have call predecessors, (3860), 3830 states have call successors, (3860) [2021-11-12 22:36:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14513 states to 14513 states and 20560 transitions. [2021-11-12 22:36:41,442 INFO L78 Accepts]: Start accepts. Automaton has 14513 states and 20560 transitions. Word has length 117 [2021-11-12 22:36:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:36:41,443 INFO L470 AbstractCegarLoop]: Abstraction has 14513 states and 20560 transitions. [2021-11-12 22:36:41,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:36:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 14513 states and 20560 transitions. [2021-11-12 22:36:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 22:36:41,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:36:41,452 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:36:41,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:36:41,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:36:41,674 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)] === [2021-11-12 22:36:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:36:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1773962956, now seen corresponding path program 1 times [2021-11-12 22:36:41,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:36:41,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241513005] [2021-11-12 22:36:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:36:41,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:36:41,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:36:41,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:36:41,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:36:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:36:43,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:36:43,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:36:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:36:43,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:36:44,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:36:44,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241513005] [2021-11-12 22:36:44,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241513005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:36:44,110 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:36:44,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:36:44,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004977124] [2021-11-12 22:36:44,110 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:36:44,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:36:44,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:36:44,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:36:44,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:36:44,112 INFO L87 Difference]: Start difference. First operand 14513 states and 20560 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 22:36:46,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:36:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:36:47,550 INFO L93 Difference]: Finished difference Result 41253 states and 58457 transitions. [2021-11-12 22:36:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:36:47,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-11-12 22:36:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:36:47,745 INFO L225 Difference]: With dead ends: 41253 [2021-11-12 22:36:47,745 INFO L226 Difference]: Without dead ends: 26761 [2021-11-12 22:36:47,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:36:47,839 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 2462 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2329.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.14ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2379.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:36:47,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2462 Valid, 6133 Invalid, 56 Unknown, 0 Unchecked, 17.14ms Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2379.78ms Time] [2021-11-12 22:36:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26761 states. [2021-11-12 22:36:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26761 to 26723. [2021-11-12 22:36:49,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26723 states, 18277 states have (on average 1.2950155933687149) internal successors, (23669), 18867 states have internal predecessors, (23669), 7050 states have call successors, (7050), 1457 states have call predecessors, (7050), 1393 states have return successors, (7115), 6686 states have call predecessors, (7115), 7046 states have call successors, (7115) [2021-11-12 22:36:49,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26723 states to 26723 states and 37834 transitions. [2021-11-12 22:36:49,622 INFO L78 Accepts]: Start accepts. Automaton has 26723 states and 37834 transitions. Word has length 121 [2021-11-12 22:36:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:36:49,623 INFO L470 AbstractCegarLoop]: Abstraction has 26723 states and 37834 transitions. [2021-11-12 22:36:49,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 22:36:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 26723 states and 37834 transitions. [2021-11-12 22:36:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 22:36:49,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:36:49,625 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:36:49,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:36:49,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:36:49,826 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:36:49,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:36:49,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1848069376, now seen corresponding path program 1 times [2021-11-12 22:36:49,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:36:49,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12245074] [2021-11-12 22:36:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:36:49,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:36:49,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:36:49,833 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:36:49,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:36:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:36:51,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:36:51,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:36:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:36:51,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:36:52,185 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:36:52,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12245074] [2021-11-12 22:36:52,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12245074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:36:52,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:36:52,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:36:52,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422679230] [2021-11-12 22:36:52,185 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:36:52,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:36:52,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:36:52,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:36:52,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:36:52,186 INFO L87 Difference]: Start difference. First operand 26723 states and 37834 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:36:54,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:37:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:00,511 INFO L93 Difference]: Finished difference Result 69598 states and 98112 transitions. [2021-11-12 22:37:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:37:00,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2021-11-12 22:37:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:00,894 INFO L225 Difference]: With dead ends: 69598 [2021-11-12 22:37:00,894 INFO L226 Difference]: Without dead ends: 42896 [2021-11-12 22:37:01,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:01,017 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4832 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6155.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 8673 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.71ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6702.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:01,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 8673 Invalid, 1226 Unknown, 0 Unchecked, 29.71ms Time], IncrementalHoareTripleChecker [42 Valid, 1183 Invalid, 1 Unknown, 0 Unchecked, 6702.56ms Time] [2021-11-12 22:37:01,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42896 states. [2021-11-12 22:37:03,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42896 to 42824. [2021-11-12 22:37:03,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42824 states, 29057 states have (on average 1.2811026602883986) internal successors, (37225), 29938 states have internal predecessors, (37225), 11349 states have call successors, (11349), 2532 states have call predecessors, (11349), 2415 states have return successors, (11391), 10825 states have call predecessors, (11391), 11345 states have call successors, (11391) [2021-11-12 22:37:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42824 states to 42824 states and 59965 transitions. [2021-11-12 22:37:03,734 INFO L78 Accepts]: Start accepts. Automaton has 42824 states and 59965 transitions. Word has length 126 [2021-11-12 22:37:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:03,736 INFO L470 AbstractCegarLoop]: Abstraction has 42824 states and 59965 transitions. [2021-11-12 22:37:03,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-12 22:37:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42824 states and 59965 transitions. [2021-11-12 22:37:03,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-12 22:37:03,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:03,740 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:03,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:03,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:03,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:37:03,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1260499852, now seen corresponding path program 1 times [2021-11-12 22:37:03,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:03,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925581964] [2021-11-12 22:37:03,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:03,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:03,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:03,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:37:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:05,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:37:05,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:37:06,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-12 22:37:06,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:06,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925581964] [2021-11-12 22:37:06,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925581964] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:06,574 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:06,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:37:06,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878937189] [2021-11-12 22:37:06,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:06,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:37:06,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:06,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:37:06,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:06,575 INFO L87 Difference]: Start difference. First operand 42824 states and 59965 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-12 22:37:08,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:37:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:15,582 INFO L93 Difference]: Finished difference Result 146054 states and 204778 transitions. [2021-11-12 22:37:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:37:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 128 [2021-11-12 22:37:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:16,437 INFO L225 Difference]: With dead ends: 146054 [2021-11-12 22:37:16,437 INFO L226 Difference]: Without dead ends: 103251 [2021-11-12 22:37:16,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:16,619 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 5024 mSDsluCounter, 6502 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5448.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 10375 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.19ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5929.54ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:16,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5024 Valid, 10375 Invalid, 1060 Unknown, 0 Unchecked, 24.19ms Time], IncrementalHoareTripleChecker [15 Valid, 1044 Invalid, 1 Unknown, 0 Unchecked, 5929.54ms Time] [2021-11-12 22:37:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103251 states. [2021-11-12 22:37:21,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103251 to 103009. [2021-11-12 22:37:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103009 states, 68921 states have (on average 1.274125447976669) internal successors, (87814), 71270 states have internal predecessors, (87814), 28021 states have call successors, (28021), 6401 states have call predecessors, (28021), 6064 states have return successors, (28555), 26491 states have call predecessors, (28555), 28017 states have call successors, (28555) [2021-11-12 22:37:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103009 states to 103009 states and 144390 transitions. [2021-11-12 22:37:22,125 INFO L78 Accepts]: Start accepts. Automaton has 103009 states and 144390 transitions. Word has length 128 [2021-11-12 22:37:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:22,126 INFO L470 AbstractCegarLoop]: Abstraction has 103009 states and 144390 transitions. [2021-11-12 22:37:22,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-12 22:37:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 103009 states and 144390 transitions. [2021-11-12 22:37:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-12 22:37:22,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:22,131 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2021-11-12 22:37:22,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:22,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:22,354 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:37:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2010006806, now seen corresponding path program 1 times [2021-11-12 22:37:22,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:22,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515511778] [2021-11-12 22:37:22,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:22,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:22,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:22,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:22,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8042c18f-43b9-4766-bb1e-35c85a74808b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:37:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:24,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:37:24,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 22:37:24,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-12 22:37:24,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:24,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515511778] [2021-11-12 22:37:24,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515511778] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:24,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:24,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:37:24,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591729273] [2021-11-12 22:37:24,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:24,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:37:24,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:37:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:24,779 INFO L87 Difference]: Start difference. First operand 103009 states and 144390 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 22:37:26,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:37:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:42,029 INFO L93 Difference]: Finished difference Result 407391 states and 571268 transitions. [2021-11-12 22:37:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:37:42,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2021-11-12 22:37:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:43,878 INFO L225 Difference]: With dead ends: 407391 [2021-11-12 22:37:43,878 INFO L226 Difference]: Without dead ends: 304403 [2021-11-12 22:37:44,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:44,766 INFO L933 BasicCegarLoop]: 4248 mSDtfsCounter, 5552 mSDsluCounter, 6574 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5672.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 10822 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.53ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6186.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:44,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5552 Valid, 10822 Invalid, 1119 Unknown, 0 Unchecked, 24.53ms Time], IncrementalHoareTripleChecker [10 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 6186.91ms Time] [2021-11-12 22:37:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304403 states.