./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:22:35,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:22:35,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:22:35,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:22:35,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:22:35,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:22:35,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:22:35,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:22:35,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:22:35,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:22:35,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:22:35,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:22:35,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:22:35,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:22:35,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:22:35,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:22:35,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:22:35,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:22:35,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:22:35,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:22:35,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:22:35,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:22:35,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:22:35,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:22:35,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:22:35,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:22:35,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:22:35,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:22:35,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:22:35,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:22:35,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:22:35,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:22:35,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:22:35,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:22:35,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:22:35,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:22:35,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:22:35,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:22:35,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:22:35,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:22:35,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:22:35,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:22:35,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:22:35,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:22:35,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:22:35,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:22:35,506 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:22:35,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:22:35,506 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:22:35,507 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:22:35,507 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:22:35,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:22:35,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:22:35,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:22:35,508 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:22:35,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:22:35,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:22:35,509 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:22:35,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:22:35,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:22:35,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:22:35,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:22:35,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:22:35,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:22:35,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:22:35,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:22:35,513 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:22:35,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:22:35,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:22:35,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:22:35,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:22:35,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:22:35,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:22:35,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:22:35,515 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:22:35,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:22:35,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:22:35,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:22:35,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:22:35,517 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_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da [2021-11-19 14:22:35,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:22:35,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:22:35,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:22:35,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:22:35,800 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:22:35,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-19 14:22:35,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/5476cafc3/2a206b8b3dab4f779548b56c82c46b1c/FLAGff77e29dd [2021-11-19 14:22:36,972 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:22:36,973 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-19 14:22:37,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/5476cafc3/2a206b8b3dab4f779548b56c82c46b1c/FLAGff77e29dd [2021-11-19 14:22:37,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/5476cafc3/2a206b8b3dab4f779548b56c82c46b1c [2021-11-19 14:22:37,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:22:37,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:22:37,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:22:37,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:22:37,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:22:37,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:37" (1/1) ... [2021-11-19 14:22:37,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2fe1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:37, skipping insertion in model container [2021-11-19 14:22:37,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:37" (1/1) ... [2021-11-19 14:22:37,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:22:37,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:22:39,174 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:39,255 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:39,494 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:39,501 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:39,927 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,077 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,125 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,125 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,126 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,128 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,171 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,171 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,173 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:40,181 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,032 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,032 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,041 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,042 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,043 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,044 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,052 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,052 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,061 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,102 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,111 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,120 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,121 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,123 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,124 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,173 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,174 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:41,184 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:22:42,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-19 14:22:42,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-19 14:22:42,410 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:22:42,446 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:22:42,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e453d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:42, skipping insertion in model container [2021-11-19 14:22:42,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:22:42,447 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:22:42,450 INFO L158 Benchmark]: Toolchain (without parser) took 5174.75ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 76.4MB in the beginning and 65.1MB in the end (delta: 11.3MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2021-11-19 14:22:42,451 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 30.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:22:42,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5171.52ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 76.4MB in the beginning and 65.1MB in the end (delta: 11.3MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2021-11-19 14:22:42,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 30.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5171.52ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 76.4MB in the beginning and 65.1MB in the end (delta: 11.3MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7793]: 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_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:22:44,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:22:44,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:22:45,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:22:45,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:22:45,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:22:45,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:22:45,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:22:45,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:22:45,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:22:45,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:22:45,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:22:45,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:22:45,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:22:45,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:22:45,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:22:45,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:22:45,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:22:45,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:22:45,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:22:45,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:22:45,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:22:45,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:22:45,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:22:45,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:22:45,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:22:45,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:22:45,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:22:45,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:22:45,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:22:45,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:22:45,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:22:45,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:22:45,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:22:45,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:22:45,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:22:45,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:22:45,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:22:45,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:22:45,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:22:45,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:22:45,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:22:45,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:22:45,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:22:45,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:22:45,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:22:45,196 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:22:45,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:22:45,197 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:22:45,197 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:22:45,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:22:45,198 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:22:45,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:22:45,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:22:45,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:22:45,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:22:45,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:22:45,202 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:22:45,202 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:22:45,202 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:22:45,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:22:45,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:22:45,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:22:45,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:22:45,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:22:45,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:22:45,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:22:45,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:22:45,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:22:45,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:22:45,206 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:22:45,206 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:22:45,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:22:45,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:22:45,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:22:45,207 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_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da [2021-11-19 14:22:45,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:22:45,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:22:45,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:22:45,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:22:45,690 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:22:45,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-19 14:22:45,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/15f8bd644/1d364e3a95e24824b00049ac1bc8821f/FLAG4ab8d00e0 [2021-11-19 14:22:47,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:22:47,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-19 14:22:47,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/15f8bd644/1d364e3a95e24824b00049ac1bc8821f/FLAG4ab8d00e0 [2021-11-19 14:22:47,228 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/data/15f8bd644/1d364e3a95e24824b00049ac1bc8821f [2021-11-19 14:22:47,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:22:47,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:22:47,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:22:47,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:22:47,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:22:47,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:47" (1/1) ... [2021-11-19 14:22:47,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bfc0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:47, skipping insertion in model container [2021-11-19 14:22:47,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:22:47" (1/1) ... [2021-11-19 14:22:47,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:22:47,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:22:52,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-19 14:22:52,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-19 14:22:52,465 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:22:52,515 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:22:52,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:22:53,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-19 14:22:53,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-19 14:22:53,291 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:22:53,326 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:22:54,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2021-11-19 14:22:54,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2021-11-19 14:22:54,045 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:22:54,347 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:22:54,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54 WrapperNode [2021-11-19 14:22:54,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:22:54,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:22:54,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:22:54,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:22:54,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:54,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:54,698 INFO L137 Inliner]: procedures = 532, calls = 2126, calls flagged for inlining = 214, calls inlined = 173, statements flattened = 5133 [2021-11-19 14:22:54,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:22:54,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:22:54,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:22:54,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:22:54,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:54,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:54,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:54,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:55,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:55,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:55,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:55,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:22:55,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:22:55,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:22:55,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:22:55,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (1/1) ... [2021-11-19 14:22:55,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:22:55,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:22:55,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:22:55,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:22:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2021-11-19 14:22:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2021-11-19 14:22:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 14:22:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2021-11-19 14:22:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2021-11-19 14:22:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2021-11-19 14:22:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2021-11-19 14:22:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2021-11-19 14:22:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2021-11-19 14:22:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:22:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:22:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 14:22:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 14:22:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:22:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:22:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-19 14:22:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-19 14:22:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2021-11-19 14:22:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2021-11-19 14:22:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2021-11-19 14:22:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2021-11-19 14:22:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:22:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:22:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2021-11-19 14:22:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2021-11-19 14:22:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2021-11-19 14:22:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2021-11-19 14:22:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2021-11-19 14:22:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2021-11-19 14:22:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-19 14:22:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-19 14:22:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2021-11-19 14:22:55,263 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2021-11-19 14:22:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:22:55,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:22:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2021-11-19 14:22:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2021-11-19 14:22:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-19 14:22:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:22:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:22:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2021-11-19 14:22:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2021-11-19 14:22:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:22:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104 [2021-11-19 14:22:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104 [2021-11-19 14:22:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:22:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2021-11-19 14:22:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2021-11-19 14:22:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:22:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:22:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104___0 [2021-11-19 14:22:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104___0 [2021-11-19 14:22:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:22:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:22:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2021-11-19 14:22:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2021-11-19 14:22:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:22:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:22:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2021-11-19 14:22:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2021-11-19 14:22:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2021-11-19 14:22:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2021-11-19 14:22:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:22:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:22:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2021-11-19 14:22:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2021-11-19 14:22:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2021-11-19 14:22:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2021-11-19 14:22:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2021-11-19 14:22:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2021-11-19 14:22:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2021-11-19 14:22:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2021-11-19 14:22:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:22:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:22:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2021-11-19 14:22:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2021-11-19 14:22:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:22:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:22:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2021-11-19 14:22:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2021-11-19 14:22:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:22:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:22:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 14:22:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 14:22:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-19 14:22:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-19 14:22:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2021-11-19 14:22:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2021-11-19 14:22:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:22:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:22:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:22:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:22:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:22:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2021-11-19 14:22:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2021-11-19 14:22:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-19 14:22:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-19 14:22:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2021-11-19 14:22:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2021-11-19 14:22:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 14:22:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 14:22:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:22:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2021-11-19 14:22:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2021-11-19 14:22:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2021-11-19 14:22:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2021-11-19 14:22:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:22:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:22:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:22:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2021-11-19 14:22:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2021-11-19 14:22:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:22:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:22:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2021-11-19 14:22:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2021-11-19 14:22:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:22:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:22:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:22:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2021-11-19 14:22:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2021-11-19 14:22:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:22:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:22:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:22:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:22:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 14:22:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 14:22:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:22:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:22:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2021-11-19 14:22:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2021-11-19 14:22:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2021-11-19 14:22:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2021-11-19 14:22:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:22:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:22:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:22:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2021-11-19 14:22:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2021-11-19 14:22:55,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:22:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:22:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:22:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:22:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:22:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:22:55,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:22:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:22:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:22:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:22:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:22:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:22:55,302 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2021-11-19 14:22:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2021-11-19 14:22:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2021-11-19 14:22:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2021-11-19 14:22:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2021-11-19 14:22:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2021-11-19 14:22:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2021-11-19 14:22:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2021-11-19 14:22:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2021-11-19 14:22:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2021-11-19 14:22:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2021-11-19 14:22:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2021-11-19 14:22:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2021-11-19 14:22:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2021-11-19 14:22:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2021-11-19 14:22:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2021-11-19 14:22:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2021-11-19 14:22:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2021-11-19 14:22:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:22:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2021-11-19 14:22:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2021-11-19 14:22:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2021-11-19 14:22:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2021-11-19 14:22:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-19 14:22:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:22:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2021-11-19 14:22:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:22:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2021-11-19 14:22:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2021-11-19 14:22:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2021-11-19 14:22:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2021-11-19 14:22:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:22:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:22:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2021-11-19 14:22:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2021-11-19 14:22:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2021-11-19 14:22:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:22:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:22:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2021-11-19 14:22:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2021-11-19 14:22:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-19 14:22:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:22:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:22:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_103 [2021-11-19 14:22:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_103 [2021-11-19 14:22:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 14:22:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 14:22:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2021-11-19 14:22:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2021-11-19 14:22:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:22:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:22:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2021-11-19 14:22:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2021-11-19 14:22:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:22:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:22:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2021-11-19 14:22:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2021-11-19 14:22:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2021-11-19 14:22:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2021-11-19 14:22:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2021-11-19 14:22:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:22:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2021-11-19 14:22:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:22:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:22:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2021-11-19 14:22:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2021-11-19 14:22:56,582 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:22:56,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:22:58,188 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:23:17,166 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:23:17,372 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:23:17,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:23:17,398 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:23:17,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:23:17 BoogieIcfgContainer [2021-11-19 14:23:17,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:23:17,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:23:17,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:23:17,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:23:17,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:22:47" (1/3) ... [2021-11-19 14:23:17,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a7f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:23:17, skipping insertion in model container [2021-11-19 14:23:17,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:22:54" (2/3) ... [2021-11-19 14:23:17,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a7f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:23:17, skipping insertion in model container [2021-11-19 14:23:17,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:23:17" (3/3) ... [2021-11-19 14:23:17,415 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2021-11-19 14:23:17,421 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:23:17,421 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:23:17,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:23:17,495 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:23:17,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:23:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 2168 states, 1441 states have (on average 1.2914642609299098) internal successors, (1861), 1489 states have internal predecessors, (1861), 602 states have call successors, (602), 125 states have call predecessors, (602), 124 states have return successors, (596), 573 states have call predecessors, (596), 596 states have call successors, (596) [2021-11-19 14:23:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-19 14:23:17,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:17,618 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:17,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:23:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash -284622610, now seen corresponding path program 1 times [2021-11-19 14:23:17,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:17,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233697869] [2021-11-19 14:23:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:17,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:17,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:17,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:17,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:23:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:19,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1711 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:23:19,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2021-11-19 14:23:20,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked. [2021-11-19 14:23:21,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:21,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233697869] [2021-11-19 14:23:21,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233697869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:21,346 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:21,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:23:21,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159408732] [2021-11-19 14:23:21,349 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:21,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:23:21,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:23:21,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:21,409 INFO L87 Difference]: Start difference. First operand has 2168 states, 1441 states have (on average 1.2914642609299098) internal successors, (1861), 1489 states have internal predecessors, (1861), 602 states have call successors, (602), 125 states have call predecessors, (602), 124 states have return successors, (596), 573 states have call predecessors, (596), 596 states have call successors, (596) Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:23:23,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:32,867 INFO L93 Difference]: Finished difference Result 8247 states and 11766 transitions. [2021-11-19 14:23:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:23:32,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 408 [2021-11-19 14:23:32,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:32,961 INFO L225 Difference]: With dead ends: 8247 [2021-11-19 14:23:32,961 INFO L226 Difference]: Without dead ends: 6040 [2021-11-19 14:23:32,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:32,994 INFO L933 BasicCegarLoop]: 4109 mSDtfsCounter, 7491 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 1123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7491 SdHoareTripleChecker+Valid, 8689 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:32,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7491 Valid, 8689 Invalid, 2426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1123 Valid, 1302 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2021-11-19 14:23:33,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-11-19 14:23:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 6032. [2021-11-19 14:23:33,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 4054 states have (on average 1.2903305377405032) internal successors, (5231), 4199 states have internal predecessors, (5231), 1611 states have call successors, (1611), 366 states have call predecessors, (1611), 366 states have return successors, (1611), 1538 states have call predecessors, (1611), 1611 states have call successors, (1611) [2021-11-19 14:23:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8453 transitions. [2021-11-19 14:23:33,628 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8453 transitions. Word has length 408 [2021-11-19 14:23:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:33,633 INFO L470 AbstractCegarLoop]: Abstraction has 6032 states and 8453 transitions. [2021-11-19 14:23:33,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:23:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8453 transitions. [2021-11-19 14:23:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-19 14:23:33,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:33,654 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:33,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:33,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:33,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:23:33,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash 298122606, now seen corresponding path program 1 times [2021-11-19 14:23:33,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:33,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373322484] [2021-11-19 14:23:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:33,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:33,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:33,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:34,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:23:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:35,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:23:35,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2021-11-19 14:23:36,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked. [2021-11-19 14:23:37,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:37,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373322484] [2021-11-19 14:23:37,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373322484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:37,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:37,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:23:37,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87433887] [2021-11-19 14:23:37,452 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:37,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:23:37,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:23:37,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:37,458 INFO L87 Difference]: Start difference. First operand 6032 states and 8453 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:23:39,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:47,861 INFO L93 Difference]: Finished difference Result 19611 states and 27265 transitions. [2021-11-19 14:23:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:23:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 409 [2021-11-19 14:23:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:48,001 INFO L225 Difference]: With dead ends: 19611 [2021-11-19 14:23:48,001 INFO L226 Difference]: Without dead ends: 13652 [2021-11-19 14:23:48,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:48,045 INFO L933 BasicCegarLoop]: 5288 mSDtfsCounter, 6336 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 786 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6336 SdHoareTripleChecker+Valid, 9789 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:48,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6336 Valid, 9789 Invalid, 2037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [786 Valid, 1250 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 14:23:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13652 states. [2021-11-19 14:23:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13652 to 13640. [2021-11-19 14:23:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13640 states, 9082 states have (on average 1.283527857300154) internal successors, (11657), 9453 states have internal predecessors, (11657), 3617 states have call successors, (3617), 940 states have call predecessors, (3617), 940 states have return successors, (3617), 3398 states have call predecessors, (3617), 3617 states have call successors, (3617) [2021-11-19 14:23:49,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13640 states to 13640 states and 18891 transitions. [2021-11-19 14:23:49,280 INFO L78 Accepts]: Start accepts. Automaton has 13640 states and 18891 transitions. Word has length 409 [2021-11-19 14:23:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:49,284 INFO L470 AbstractCegarLoop]: Abstraction has 13640 states and 18891 transitions. [2021-11-19 14:23:49,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:23:49,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13640 states and 18891 transitions. [2021-11-19 14:23:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-11-19 14:23:49,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:49,311 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 34, 34, 34, 34, 34, 34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:49,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:49,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:49,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:23:49,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1977671146, now seen corresponding path program 1 times [2021-11-19 14:23:49,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:49,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799044894] [2021-11-19 14:23:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:49,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:49,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:49,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:23:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:50,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:23:50,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5259 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2021-11-19 14:23:51,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5259 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5256 trivial. 0 not checked. [2021-11-19 14:23:52,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:52,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799044894] [2021-11-19 14:23:52,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799044894] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:52,788 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:52,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:23:52,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192304883] [2021-11-19 14:23:52,789 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:52,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:23:52,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:23:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:52,792 INFO L87 Difference]: Start difference. First operand 13640 states and 18891 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 14:23:54,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:24:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:00,429 INFO L93 Difference]: Finished difference Result 41382 states and 57245 transitions. [2021-11-19 14:24:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:24:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 442 [2021-11-19 14:24:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:00,635 INFO L225 Difference]: With dead ends: 41382 [2021-11-19 14:24:00,635 INFO L226 Difference]: Without dead ends: 27815 [2021-11-19 14:24:00,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:00,715 INFO L933 BasicCegarLoop]: 3743 mSDtfsCounter, 4018 mSDsluCounter, 5332 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 9075 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:00,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4018 Valid, 9075 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1113 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-19 14:24:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27815 states. [2021-11-19 14:24:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27815 to 27811. [2021-11-19 14:24:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27811 states, 18494 states have (on average 1.2839839948091274) internal successors, (23746), 19250 states have internal predecessors, (23746), 7349 states have call successors, (7349), 1967 states have call predecessors, (7349), 1967 states have return successors, (7349), 6905 states have call predecessors, (7349), 7349 states have call successors, (7349) [2021-11-19 14:24:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27811 states to 27811 states and 38444 transitions. [2021-11-19 14:24:02,464 INFO L78 Accepts]: Start accepts. Automaton has 27811 states and 38444 transitions. Word has length 442 [2021-11-19 14:24:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:02,465 INFO L470 AbstractCegarLoop]: Abstraction has 27811 states and 38444 transitions. [2021-11-19 14:24:02,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 14:24:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 27811 states and 38444 transitions. [2021-11-19 14:24:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-19 14:24:02,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:02,481 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 35, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:02,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:02,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:02,706 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:24:02,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1504146588, now seen corresponding path program 1 times [2021-11-19 14:24:02,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:02,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430372352] [2021-11-19 14:24:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:02,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:02,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:02,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:02,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:24:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:04,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:24:04,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 5052 trivial. 0 not checked. [2021-11-19 14:24:05,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5463 trivial. 0 not checked. [2021-11-19 14:24:06,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:06,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430372352] [2021-11-19 14:24:06,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430372352] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:06,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:24:06,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:24:06,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481758040] [2021-11-19 14:24:06,196 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:06,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:24:06,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:06,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:24:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:06,197 INFO L87 Difference]: Start difference. First operand 27811 states and 38444 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-19 14:24:08,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:24:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:14,688 INFO L93 Difference]: Finished difference Result 107761 states and 148743 transitions. [2021-11-19 14:24:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:24:14,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 453 [2021-11-19 14:24:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:15,324 INFO L225 Difference]: With dead ends: 107761 [2021-11-19 14:24:15,324 INFO L226 Difference]: Without dead ends: 80023 [2021-11-19 14:24:15,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:15,461 INFO L933 BasicCegarLoop]: 4026 mSDtfsCounter, 5738 mSDsluCounter, 5129 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5738 SdHoareTripleChecker+Valid, 9155 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:15,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5738 Valid, 9155 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1190 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-19 14:24:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80023 states. [2021-11-19 14:24:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80023 to 79911. [2021-11-19 14:24:20,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79911 states, 53238 states have (on average 1.2834629400052595) internal successors, (68329), 55482 states have internal predecessors, (68329), 20927 states have call successors, (20927), 5745 states have call predecessors, (20927), 5745 states have return successors, (20927), 19603 states have call predecessors, (20927), 20927 states have call successors, (20927) [2021-11-19 14:24:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79911 states to 79911 states and 110183 transitions. [2021-11-19 14:24:21,095 INFO L78 Accepts]: Start accepts. Automaton has 79911 states and 110183 transitions. Word has length 453 [2021-11-19 14:24:21,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:21,098 INFO L470 AbstractCegarLoop]: Abstraction has 79911 states and 110183 transitions. [2021-11-19 14:24:21,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-19 14:24:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 79911 states and 110183 transitions. [2021-11-19 14:24:21,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2021-11-19 14:24:21,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:21,114 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 35, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:21,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:21,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:21,329 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:24:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1515774131, now seen corresponding path program 1 times [2021-11-19 14:24:21,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:21,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594116405] [2021-11-19 14:24:21,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:21,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:21,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:21,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:21,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:24:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:22,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:24:22,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:23,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 5052 trivial. 0 not checked. [2021-11-19 14:24:23,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5463 trivial. 0 not checked. [2021-11-19 14:24:24,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:24,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594116405] [2021-11-19 14:24:24,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594116405] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:24,647 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:24:24,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:24:24,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141799630] [2021-11-19 14:24:24,647 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:24,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:24:24,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:24,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:24:24,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:24,650 INFO L87 Difference]: Start difference. First operand 79911 states and 110183 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-19 14:24:26,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:24:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:38,144 INFO L93 Difference]: Finished difference Result 313393 states and 431329 transitions. [2021-11-19 14:24:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:24:38,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 459 [2021-11-19 14:24:38,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:40,052 INFO L225 Difference]: With dead ends: 313393 [2021-11-19 14:24:40,052 INFO L226 Difference]: Without dead ends: 233555 [2021-11-19 14:24:40,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:40,470 INFO L933 BasicCegarLoop]: 4073 mSDtfsCounter, 5738 mSDsluCounter, 5127 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5738 SdHoareTripleChecker+Valid, 9200 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:40,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5738 Valid, 9200 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1190 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-19 14:24:40,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233555 states. [2021-11-19 14:24:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233555 to 233479. [2021-11-19 14:24:51,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233479 states, 155858 states have (on average 1.2817308062467117) internal successors, (199768), 162566 states have internal predecessors, (199768), 60541 states have call successors, (60541), 17079 states have call predecessors, (60541), 17079 states have return successors, (60541), 56577 states have call predecessors, (60541), 60541 states have call successors, (60541) [2021-11-19 14:24:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233479 states to 233479 states and 320850 transitions. [2021-11-19 14:24:53,397 INFO L78 Accepts]: Start accepts. Automaton has 233479 states and 320850 transitions. Word has length 459 [2021-11-19 14:24:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:53,398 INFO L470 AbstractCegarLoop]: Abstraction has 233479 states and 320850 transitions. [2021-11-19 14:24:53,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-19 14:24:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 233479 states and 320850 transitions. [2021-11-19 14:24:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-11-19 14:24:53,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:53,407 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 35, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:53,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:53,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:53,621 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:24:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1560998385, now seen corresponding path program 1 times [2021-11-19 14:24:53,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:53,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296146548] [2021-11-19 14:24:53,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:53,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:53,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:53,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a3cee80-1ead-4f06-a54b-ad70f40324c2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:24:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:54,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:24:54,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5469 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 5058 trivial. 0 not checked. [2021-11-19 14:24:55,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5469 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5469 trivial. 0 not checked. [2021-11-19 14:24:56,596 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:56,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296146548] [2021-11-19 14:24:56,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296146548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:56,597 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:24:56,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:24:56,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589474423] [2021-11-19 14:24:56,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:56,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:24:56,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:56,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:24:56,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:24:56,599 INFO L87 Difference]: Start difference. First operand 233479 states and 320850 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-19 14:24:58,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []