./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8 --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 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:19:13,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:19:13,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:19:13,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:19:13,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:19:13,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:19:13,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:19:13,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:19:13,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:19:13,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:19:13,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:19:13,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:19:13,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:19:13,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:19:13,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:19:13,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:19:13,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:19:13,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:19:13,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:19:13,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:19:13,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:19:13,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:19:13,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:19:13,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:19:13,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:19:13,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:19:13,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:19:13,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:19:13,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:19:13,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:19:13,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:19:13,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:19:13,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:19:13,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:19:13,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:19:13,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:19:13,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:19:13,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:19:13,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:19:13,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:19:13,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:19:13,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:19:13,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:19:13,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:19:13,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:19:13,792 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:19:13,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:19:13,792 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:19:13,793 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:19:13,793 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:19:13,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:19:13,800 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:19:13,801 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:19:13,801 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:19:13,801 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:19:13,801 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:19:13,802 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:19:13,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:19:13,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:19:13,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:19:13,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:19:13,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:19:13,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:19:13,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:19:13,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:19:13,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:19:13,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:19:13,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:19:13,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:19:13,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:13,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:19:13,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:19:13,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:19:13,808 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:19:13,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:19:13,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:19:13,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:19:13,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:19:13,809 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_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-07 01:19:14,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:19:14,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:19:14,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:19:14,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:19:14,129 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:19:14,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-07 01:19:14,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/1d636c3d1/cb528f05a6cf40898e1b80aca61e4a3a/FLAG6296fe98a [2021-11-07 01:19:15,311 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:19:15,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-07 01:19:15,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/1d636c3d1/cb528f05a6cf40898e1b80aca61e4a3a/FLAG6296fe98a [2021-11-07 01:19:15,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/1d636c3d1/cb528f05a6cf40898e1b80aca61e4a3a [2021-11-07 01:19:15,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:19:15,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:19:15,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:15,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:19:15,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:19:15,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:15" (1/1) ... [2021-11-07 01:19:15,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703394d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:15, skipping insertion in model container [2021-11-07 01:19:15,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:15" (1/1) ... [2021-11-07 01:19:15,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:19:15,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:17,711 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:17,962 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:17,976 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:17,990 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,011 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,026 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,027 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,043 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,135 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,137 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,146 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,147 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,279 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,368 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,386 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,436 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,437 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,438 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,440 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,446 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,458 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,475 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,532 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,545 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,546 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,547 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,571 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:18,585 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,006 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,009 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,153 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,248 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,249 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,354 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,356 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,417 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,418 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,418 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,427 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,550 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,589 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,589 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,592 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,594 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,597 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,599 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,600 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,600 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,601 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,610 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,686 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,717 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:19,730 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:20,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-07 01:19:20,815 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-07 01:19:20,818 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-07 01:19:20,818 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-07 01:19:20,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:20,885 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) [2021-11-07 01:19:20,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@511f5c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:20, skipping insertion in model container [2021-11-07 01:19:20,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:20,886 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:19:20,889 INFO L168 Benchmark]: Toolchain (without parser) took 5348.87 ms. Allocated memory was 98.6 MB in the beginning and 176.2 MB in the end (delta: 77.6 MB). Free memory was 56.3 MB in the beginning and 84.7 MB in the end (delta: -28.4 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:20,890 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:19:20,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5343.91 ms. Allocated memory was 98.6 MB in the beginning and 176.2 MB in the end (delta: 77.6 MB). Free memory was 56.0 MB in the beginning and 84.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:20,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5343.91 ms. Allocated memory was 98.6 MB in the beginning and 176.2 MB in the end (delta: 77.6 MB). Free memory was 56.0 MB in the beginning and 84.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 8752]: 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_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8 --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 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:19:23,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:19:23,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:19:23,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:19:23,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:19:23,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:19:23,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:19:23,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:19:23,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:19:23,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:19:23,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:19:23,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:19:23,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:19:23,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:19:23,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:19:23,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:19:23,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:19:23,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:19:23,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:19:23,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:19:23,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:19:23,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:19:23,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:19:23,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:19:23,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:19:23,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:19:23,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:19:23,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:19:23,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:19:23,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:19:23,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:19:23,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:19:23,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:19:23,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:19:23,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:19:23,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:19:23,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:19:23,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:19:23,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:19:23,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:19:23,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:19:23,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:19:23,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:19:23,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:19:23,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:19:23,283 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:19:23,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:19:23,283 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:19:23,283 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:19:23,283 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:19:23,284 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:19:23,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:19:23,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:19:23,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:19:23,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:19:23,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:19:23,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:19:23,287 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:19:23,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:19:23,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:19:23,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:19:23,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:19:23,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:19:23,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:19:23,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:19:23,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:23,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:19:23,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:19:23,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:19:23,290 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:19:23,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:19:23,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:19:23,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:19:23,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:19:23,291 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_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-07 01:19:23,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:19:23,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:19:23,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:19:23,728 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:19:23,728 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:19:23,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-07 01:19:23,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/aadf49f36/b64d826612c441ddacd098107a2e7976/FLAGda38dd1b7 [2021-11-07 01:19:24,945 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:19:24,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-07 01:19:25,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/aadf49f36/b64d826612c441ddacd098107a2e7976/FLAGda38dd1b7 [2021-11-07 01:19:25,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/data/aadf49f36/b64d826612c441ddacd098107a2e7976 [2021-11-07 01:19:25,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:19:25,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:19:25,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:25,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:19:25,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:19:25,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:25" (1/1) ... [2021-11-07 01:19:25,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297b0925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:25, skipping insertion in model container [2021-11-07 01:19:25,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:25" (1/1) ... [2021-11-07 01:19:25,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:19:25,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:30,800 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-07 01:19:30,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-07 01:19:30,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-07 01:19:30,804 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-07 01:19:30,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:30,854 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:19:30,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:31,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-07 01:19:31,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-07 01:19:31,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-07 01:19:31,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-07 01:19:31,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:31,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:19:32,037 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-07 01:19:32,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-07 01:19:32,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-07 01:19:32,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-07 01:19:32,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:32,369 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:19:32,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32 WrapperNode [2021-11-07 01:19:32,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:32,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:19:32,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:19:32,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:19:32,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:32,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:33,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:19:33,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:19:33,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:19:33,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:19:33,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:33,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:33,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:33,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:34,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:34,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:34,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:34,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:19:34,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:19:34,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:19:34,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:19:34,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (1/1) ... [2021-11-07 01:19:34,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:34,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:19:34,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:19:34,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:19:34,804 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2021-11-07 01:19:34,804 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2021-11-07 01:19:34,804 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 01:19:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 01:19:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 01:19:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:19:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2021-11-07 01:19:34,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2021-11-07 01:19:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:19:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:19:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:19:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 01:19:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 01:19:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2021-11-07 01:19:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2021-11-07 01:19:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:19:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:19:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 01:19:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 01:19:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:19:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2021-11-07 01:19:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2021-11-07 01:19:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:19:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:19:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:19:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:19:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 01:19:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 01:19:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:19:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:19:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:19:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:19:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:19:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2021-11-07 01:19:34,811 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2021-11-07 01:19:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2021-11-07 01:19:34,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2021-11-07 01:19:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:19:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:19:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:19:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:19:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:19:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:19:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:19:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2021-11-07 01:19:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2021-11-07 01:19:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2021-11-07 01:19:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2021-11-07 01:19:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2021-11-07 01:19:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2021-11-07 01:19:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:19:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:19:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:19:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:19:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2021-11-07 01:19:34,817 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2021-11-07 01:19:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2021-11-07 01:19:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2021-11-07 01:19:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-07 01:19:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-07 01:19:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2021-11-07 01:19:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2021-11-07 01:19:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2021-11-07 01:19:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2021-11-07 01:19:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2021-11-07 01:19:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2021-11-07 01:23:08,360 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 01:23:08,360 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-07 01:23:08,360 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:23:08,361 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:23:08,362 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:23:08,364 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 01:23:08,364 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:23:08,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:23:08,440 INFO L299 CfgBuilder]: Removed 8152 assume(true) statements. [2021-11-07 01:23:08,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:08 BoogieIcfgContainer [2021-11-07 01:23:08,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:23:08,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:23:08,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:23:08,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:23:08,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:19:25" (1/3) ... [2021-11-07 01:23:08,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411fc1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:08, skipping insertion in model container [2021-11-07 01:23:08,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:32" (2/3) ... [2021-11-07 01:23:08,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411fc1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:08, skipping insertion in model container [2021-11-07 01:23:08,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:08" (3/3) ... [2021-11-07 01:23:08,458 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-07 01:23:08,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:23:08,464 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 137 error locations. [2021-11-07 01:23:08,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:23:08,560 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 [2021-11-07 01:23:08,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2021-11-07 01:23:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 8724 states, 8489 states have (on average 1.423018023324302) internal successors, (12080), 8643 states have internal predecessors, (12080), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (79), 68 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-07 01:23:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 01:23:08,743 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:08,744 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:08,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:23:08,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1399204513, now seen corresponding path program 1 times [2021-11-07 01:23:08,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:08,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067438710] [2021-11-07 01:23:08,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:08,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:08,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:08,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:23:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:15,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:23:15,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:15,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:16,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:16,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067438710] [2021-11-07 01:23:16,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067438710] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:16,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:23:16,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383104058] [2021-11-07 01:23:16,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:23:16,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:16,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:23:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:23:16,170 INFO L87 Difference]: Start difference. First operand has 8724 states, 8489 states have (on average 1.423018023324302) internal successors, (12080), 8643 states have internal predecessors, (12080), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (79), 68 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:21,510 INFO L93 Difference]: Finished difference Result 30812 states and 42833 transitions. [2021-11-07 01:23:21,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:23:21,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-07 01:23:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:21,682 INFO L225 Difference]: With dead ends: 30812 [2021-11-07 01:23:21,682 INFO L226 Difference]: Without dead ends: 21437 [2021-11-07 01:23:21,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:23:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21437 states. [2021-11-07 01:23:22,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21437 to 21105. [2021-11-07 01:23:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21105 states, 20674 states have (on average 1.2825287801102834) internal successors, (26515), 20864 states have internal predecessors, (26515), 237 states have call successors, (237), 57 states have call predecessors, (237), 57 states have return successors, (237), 204 states have call predecessors, (237), 237 states have call successors, (237) [2021-11-07 01:23:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21105 states to 21105 states and 26989 transitions. [2021-11-07 01:23:22,589 INFO L78 Accepts]: Start accepts. Automaton has 21105 states and 26989 transitions. Word has length 125 [2021-11-07 01:23:22,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:22,590 INFO L470 AbstractCegarLoop]: Abstraction has 21105 states and 26989 transitions. [2021-11-07 01:23:22,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 21105 states and 26989 transitions. [2021-11-07 01:23:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 01:23:22,595 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:22,595 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:22,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:22,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:22,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:23:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1395175758, now seen corresponding path program 1 times [2021-11-07 01:23:22,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:22,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161607742] [2021-11-07 01:23:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:22,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:22,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:22,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:22,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:23:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:29,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:23:29,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:29,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:30,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:30,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161607742] [2021-11-07 01:23:30,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161607742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:30,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:30,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:23:30,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733717419] [2021-11-07 01:23:30,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:23:30,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:23:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:23:30,421 INFO L87 Difference]: Start difference. First operand 21105 states and 26989 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:34,486 INFO L93 Difference]: Finished difference Result 47770 states and 61109 transitions. [2021-11-07 01:23:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:23:34,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 01:23:34,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:34,621 INFO L225 Difference]: With dead ends: 47770 [2021-11-07 01:23:34,622 INFO L226 Difference]: Without dead ends: 26941 [2021-11-07 01:23:34,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:23:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26941 states. [2021-11-07 01:23:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26941 to 26591. [2021-11-07 01:23:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26591 states, 26039 states have (on average 1.2856868543338837) internal successors, (33478), 26253 states have internal predecessors, (33478), 320 states have call successors, (320), 95 states have call predecessors, (320), 95 states have return successors, (320), 274 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-07 01:23:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 34118 transitions. [2021-11-07 01:23:35,885 INFO L78 Accepts]: Start accepts. Automaton has 26591 states and 34118 transitions. Word has length 134 [2021-11-07 01:23:35,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:35,887 INFO L470 AbstractCegarLoop]: Abstraction has 26591 states and 34118 transitions. [2021-11-07 01:23:35,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:35,888 INFO L276 IsEmpty]: Start isEmpty. Operand 26591 states and 34118 transitions. [2021-11-07 01:23:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-07 01:23:35,891 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:35,891 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:35,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:36,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:36,116 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:23:36,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1834547434, now seen corresponding path program 1 times [2021-11-07 01:23:36,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:36,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386462509] [2021-11-07 01:23:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:36,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:36,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:23:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:43,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:23:43,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:43,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:44,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:44,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386462509] [2021-11-07 01:23:44,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386462509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:44,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:44,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:23:44,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693003884] [2021-11-07 01:23:44,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:23:44,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:44,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:23:44,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:23:44,402 INFO L87 Difference]: Start difference. First operand 26591 states and 34118 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:48,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:48,068 INFO L93 Difference]: Finished difference Result 58722 states and 75313 transitions. [2021-11-07 01:23:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:23:48,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-07 01:23:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:48,182 INFO L225 Difference]: With dead ends: 58722 [2021-11-07 01:23:48,182 INFO L226 Difference]: Without dead ends: 32407 [2021-11-07 01:23:48,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:23:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32407 states. [2021-11-07 01:23:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32407 to 32055. [2021-11-07 01:23:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32055 states, 31430 states have (on average 1.286446070633153) internal successors, (40433), 31658 states have internal predecessors, (40433), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-07 01:23:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32055 states to 32055 states and 41181 transitions. [2021-11-07 01:23:49,495 INFO L78 Accepts]: Start accepts. Automaton has 32055 states and 41181 transitions. Word has length 135 [2021-11-07 01:23:49,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:49,497 INFO L470 AbstractCegarLoop]: Abstraction has 32055 states and 41181 transitions. [2021-11-07 01:23:49,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 32055 states and 41181 transitions. [2021-11-07 01:23:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-07 01:23:49,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:49,511 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:49,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:49,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:49,736 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:23:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:49,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1353649086, now seen corresponding path program 1 times [2021-11-07 01:23:49,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:49,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765246148] [2021-11-07 01:23:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:49,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:49,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:49,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:49,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:23:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:55,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:23:55,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:23:57,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:23:59,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:59,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765246148] [2021-11-07 01:23:59,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765246148] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:59,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:59,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:23:59,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872430850] [2021-11-07 01:23:59,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:23:59,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:23:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:23:59,859 INFO L87 Difference]: Start difference. First operand 32055 states and 41181 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:02,036 INFO L93 Difference]: Finished difference Result 32055 states and 41181 transitions. [2021-11-07 01:24:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-07 01:24:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:02,134 INFO L225 Difference]: With dead ends: 32055 [2021-11-07 01:24:02,134 INFO L226 Difference]: Without dead ends: 32049 [2021-11-07 01:24:02,147 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32049 states. [2021-11-07 01:24:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32049 to 32049. [2021-11-07 01:24:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32049 states, 31427 states have (on average 1.2863779552613994) internal successors, (40427), 31652 states have internal predecessors, (40427), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-07 01:24:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32049 states to 32049 states and 41175 transitions. [2021-11-07 01:24:03,554 INFO L78 Accepts]: Start accepts. Automaton has 32049 states and 41175 transitions. Word has length 157 [2021-11-07 01:24:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:03,555 INFO L470 AbstractCegarLoop]: Abstraction has 32049 states and 41175 transitions. [2021-11-07 01:24:03,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 32049 states and 41175 transitions. [2021-11-07 01:24:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 01:24:03,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:03,560 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:03,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:03,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:03,788 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:24:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 518591365, now seen corresponding path program 1 times [2021-11-07 01:24:03,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:03,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161753689] [2021-11-07 01:24:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:03,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:03,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:03,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:03,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:24:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:10,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:10,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:11,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:13,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:13,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:13,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161753689] [2021-11-07 01:24:13,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161753689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:13,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:13,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:13,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733872347] [2021-11-07 01:24:13,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:13,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:13,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:13,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:13,605 INFO L87 Difference]: Start difference. First operand 32049 states and 41175 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:15,847 INFO L93 Difference]: Finished difference Result 32049 states and 41175 transitions. [2021-11-07 01:24:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-11-07 01:24:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:15,953 INFO L225 Difference]: With dead ends: 32049 [2021-11-07 01:24:15,953 INFO L226 Difference]: Without dead ends: 32043 [2021-11-07 01:24:15,961 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32043 states. [2021-11-07 01:24:17,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32043 to 32043. [2021-11-07 01:24:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32043 states, 31424 states have (on average 1.2863098268839104) internal successors, (40421), 31646 states have internal predecessors, (40421), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-07 01:24:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32043 states to 32043 states and 41169 transitions. [2021-11-07 01:24:17,377 INFO L78 Accepts]: Start accepts. Automaton has 32043 states and 41169 transitions. Word has length 159 [2021-11-07 01:24:17,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:17,378 INFO L470 AbstractCegarLoop]: Abstraction has 32043 states and 41169 transitions. [2021-11-07 01:24:17,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 32043 states and 41169 transitions. [2021-11-07 01:24:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-07 01:24:17,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:17,383 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:17,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:17,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:17,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:24:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash 150368072, now seen corresponding path program 1 times [2021-11-07 01:24:17,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:17,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432689197] [2021-11-07 01:24:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:17,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:17,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:17,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:17,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:24:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:23,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:23,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:25,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:27,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:27,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432689197] [2021-11-07 01:24:27,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432689197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:27,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:27,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:27,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651012087] [2021-11-07 01:24:27,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:27,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:27,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:27,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:27,533 INFO L87 Difference]: Start difference. First operand 32043 states and 41169 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:29,308 INFO L93 Difference]: Finished difference Result 32043 states and 41169 transitions. [2021-11-07 01:24:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-07 01:24:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:29,393 INFO L225 Difference]: With dead ends: 32043 [2021-11-07 01:24:29,393 INFO L226 Difference]: Without dead ends: 32037 [2021-11-07 01:24:29,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32037 states. [2021-11-07 01:24:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32037 to 32037. [2021-11-07 01:24:31,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32037 states, 31421 states have (on average 1.2862416854969607) internal successors, (40415), 31640 states have internal predecessors, (40415), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-07 01:24:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32037 states to 32037 states and 41163 transitions. [2021-11-07 01:24:31,115 INFO L78 Accepts]: Start accepts. Automaton has 32037 states and 41163 transitions. Word has length 161 [2021-11-07 01:24:31,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:31,116 INFO L470 AbstractCegarLoop]: Abstraction has 32037 states and 41163 transitions. [2021-11-07 01:24:31,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:31,116 INFO L276 IsEmpty]: Start isEmpty. Operand 32037 states and 41163 transitions. [2021-11-07 01:24:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 01:24:31,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:31,121 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:31,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:31,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:31,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:24:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1524897909, now seen corresponding path program 1 times [2021-11-07 01:24:31,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:31,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606071929] [2021-11-07 01:24:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:31,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:31,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:31,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:31,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:24:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:37,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:37,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:39,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:41,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:41,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606071929] [2021-11-07 01:24:41,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606071929] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:41,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:41,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:41,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507990593] [2021-11-07 01:24:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:41,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:41,282 INFO L87 Difference]: Start difference. First operand 32037 states and 41163 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:46,604 INFO L93 Difference]: Finished difference Result 35763 states and 46286 transitions. [2021-11-07 01:24:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:46,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-11-07 01:24:46,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:46,699 INFO L225 Difference]: With dead ends: 35763 [2021-11-07 01:24:46,699 INFO L226 Difference]: Without dead ends: 35757 [2021-11-07 01:24:46,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:46,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35757 states. [2021-11-07 01:24:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35757 to 35403. [2021-11-07 01:24:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35403 states, 34516 states have (on average 1.2910823965697067) internal successors, (44563), 34804 states have internal predecessors, (44563), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:24:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35403 states to 35403 states and 45851 transitions. [2021-11-07 01:24:48,952 INFO L78 Accepts]: Start accepts. Automaton has 35403 states and 45851 transitions. Word has length 163 [2021-11-07 01:24:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:48,952 INFO L470 AbstractCegarLoop]: Abstraction has 35403 states and 45851 transitions. [2021-11-07 01:24:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 35403 states and 45851 transitions. [2021-11-07 01:24:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-07 01:24:48,958 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:48,959 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:49,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:24:49,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:49,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:24:49,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash -842769330, now seen corresponding path program 1 times [2021-11-07 01:24:49,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:49,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238548983] [2021-11-07 01:24:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:49,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:49,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:49,182 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:49,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:24:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:55,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:55,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:24:58,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:00,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:00,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238548983] [2021-11-07 01:25:00,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238548983] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:00,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:00,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:00,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209042456] [2021-11-07 01:25:00,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:00,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:00,261 INFO L87 Difference]: Start difference. First operand 35403 states and 45851 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:03,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:03,196 INFO L93 Difference]: Finished difference Result 35403 states and 45851 transitions. [2021-11-07 01:25:03,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:03,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-07 01:25:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:03,284 INFO L225 Difference]: With dead ends: 35403 [2021-11-07 01:25:03,284 INFO L226 Difference]: Without dead ends: 35397 [2021-11-07 01:25:03,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35397 states. [2021-11-07 01:25:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35397 to 35397. [2021-11-07 01:25:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35397 states, 34513 states have (on average 1.2910207747805176) internal successors, (44557), 34798 states have internal predecessors, (44557), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:25:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35397 states to 35397 states and 45845 transitions. [2021-11-07 01:25:05,161 INFO L78 Accepts]: Start accepts. Automaton has 35397 states and 45845 transitions. Word has length 165 [2021-11-07 01:25:05,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:05,161 INFO L470 AbstractCegarLoop]: Abstraction has 35397 states and 45845 transitions. [2021-11-07 01:25:05,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 35397 states and 45845 transitions. [2021-11-07 01:25:05,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-07 01:25:05,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:05,166 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:05,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:05,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:05,380 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:25:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:05,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1847766417, now seen corresponding path program 1 times [2021-11-07 01:25:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:05,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226983017] [2021-11-07 01:25:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:05,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:05,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:05,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:05,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:25:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:11,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:11,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:13,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:16,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:16,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226983017] [2021-11-07 01:25:16,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226983017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:16,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:16,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:16,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826999438] [2021-11-07 01:25:16,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:16,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:16,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:16,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:16,116 INFO L87 Difference]: Start difference. First operand 35397 states and 45845 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:18,809 INFO L93 Difference]: Finished difference Result 35397 states and 45845 transitions. [2021-11-07 01:25:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-11-07 01:25:18,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:18,907 INFO L225 Difference]: With dead ends: 35397 [2021-11-07 01:25:18,907 INFO L226 Difference]: Without dead ends: 35391 [2021-11-07 01:25:18,919 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35391 states. [2021-11-07 01:25:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35391 to 35391. [2021-11-07 01:25:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35391 states, 34510 states have (on average 1.2909591422776008) internal successors, (44551), 34792 states have internal predecessors, (44551), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:25:20,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 45839 transitions. [2021-11-07 01:25:20,754 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 45839 transitions. Word has length 167 [2021-11-07 01:25:20,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:20,754 INFO L470 AbstractCegarLoop]: Abstraction has 35391 states and 45839 transitions. [2021-11-07 01:25:20,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:20,755 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 45839 transitions. [2021-11-07 01:25:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-07 01:25:20,757 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:20,758 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:20,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 01:25:20,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:25:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1882307412, now seen corresponding path program 1 times [2021-11-07 01:25:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:20,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913415901] [2021-11-07 01:25:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:20,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:20,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:20,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:25:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:27,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:27,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:29,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:31,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:31,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913415901] [2021-11-07 01:25:31,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913415901] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:31,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:31,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:31,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962623912] [2021-11-07 01:25:31,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:31,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:31,728 INFO L87 Difference]: Start difference. First operand 35391 states and 45839 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:34,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:34,621 INFO L93 Difference]: Finished difference Result 35391 states and 45839 transitions. [2021-11-07 01:25:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:34,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2021-11-07 01:25:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:34,699 INFO L225 Difference]: With dead ends: 35391 [2021-11-07 01:25:34,700 INFO L226 Difference]: Without dead ends: 35385 [2021-11-07 01:25:34,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:34,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35385 states. [2021-11-07 01:25:36,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35385 to 35385. [2021-11-07 01:25:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35385 states, 34507 states have (on average 1.290897499058162) internal successors, (44545), 34786 states have internal predecessors, (44545), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:25:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35385 states to 35385 states and 45833 transitions. [2021-11-07 01:25:36,485 INFO L78 Accepts]: Start accepts. Automaton has 35385 states and 45833 transitions. Word has length 169 [2021-11-07 01:25:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:36,485 INFO L470 AbstractCegarLoop]: Abstraction has 35385 states and 45833 transitions. [2021-11-07 01:25:36,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 35385 states and 45833 transitions. [2021-11-07 01:25:36,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 01:25:36,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:36,490 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:36,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:36,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:36,704 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:25:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash 716465559, now seen corresponding path program 1 times [2021-11-07 01:25:36,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:36,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487223910] [2021-11-07 01:25:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:36,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:36,709 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:36,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:25:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:43,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:43,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:45,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:25:47,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:47,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487223910] [2021-11-07 01:25:47,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487223910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:47,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:47,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:47,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290429171] [2021-11-07 01:25:47,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:47,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:47,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:47,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:47,860 INFO L87 Difference]: Start difference. First operand 35385 states and 45833 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:52,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:52,573 INFO L93 Difference]: Finished difference Result 35385 states and 45833 transitions. [2021-11-07 01:25:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-07 01:25:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:52,646 INFO L225 Difference]: With dead ends: 35385 [2021-11-07 01:25:52,646 INFO L226 Difference]: Without dead ends: 35379 [2021-11-07 01:25:52,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35379 states. [2021-11-07 01:25:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35379 to 35379. [2021-11-07 01:25:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35379 states, 34504 states have (on average 1.2908358451194064) internal successors, (44539), 34780 states have internal predecessors, (44539), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:25:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35379 states to 35379 states and 45827 transitions. [2021-11-07 01:25:54,565 INFO L78 Accepts]: Start accepts. Automaton has 35379 states and 45827 transitions. Word has length 171 [2021-11-07 01:25:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:54,566 INFO L470 AbstractCegarLoop]: Abstraction has 35379 states and 45827 transitions. [2021-11-07 01:25:54,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 35379 states and 45827 transitions. [2021-11-07 01:25:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-07 01:25:54,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:54,572 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:54,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:54,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:54,788 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:25:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1328909402, now seen corresponding path program 1 times [2021-11-07 01:25:54,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:54,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280817679] [2021-11-07 01:25:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:54,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:54,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:54,794 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:54,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:26:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:01,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:01,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:03,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:05,680 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:05,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280817679] [2021-11-07 01:26:05,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280817679] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:05,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:05,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:05,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859937895] [2021-11-07 01:26:05,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:05,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:05,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:05,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:05,683 INFO L87 Difference]: Start difference. First operand 35379 states and 45827 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:08,697 INFO L93 Difference]: Finished difference Result 35379 states and 45827 transitions. [2021-11-07 01:26:08,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:08,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-07 01:26:08,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:08,768 INFO L225 Difference]: With dead ends: 35379 [2021-11-07 01:26:08,768 INFO L226 Difference]: Without dead ends: 35373 [2021-11-07 01:26:08,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:08,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35373 states. [2021-11-07 01:26:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35373 to 35373. [2021-11-07 01:26:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35373 states, 34501 states have (on average 1.2907741804585375) internal successors, (44533), 34774 states have internal predecessors, (44533), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:26:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35373 states to 35373 states and 45821 transitions. [2021-11-07 01:26:10,974 INFO L78 Accepts]: Start accepts. Automaton has 35373 states and 45821 transitions. Word has length 173 [2021-11-07 01:26:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:10,975 INFO L470 AbstractCegarLoop]: Abstraction has 35373 states and 45821 transitions. [2021-11-07 01:26:10,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35373 states and 45821 transitions. [2021-11-07 01:26:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-07 01:26:10,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:10,980 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:11,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:11,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:11,204 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:26:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1476923293, now seen corresponding path program 1 times [2021-11-07 01:26:11,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:11,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93881920] [2021-11-07 01:26:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:11,208 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:11,209 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:11,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:26:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:17,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:17,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:20,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:22,389 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:22,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93881920] [2021-11-07 01:26:22,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93881920] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:22,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:22,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:22,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772342349] [2021-11-07 01:26:22,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:22,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:22,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:22,392 INFO L87 Difference]: Start difference. First operand 35373 states and 45821 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:25,806 INFO L93 Difference]: Finished difference Result 35373 states and 45821 transitions. [2021-11-07 01:26:25,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:25,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-07 01:26:25,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:25,882 INFO L225 Difference]: With dead ends: 35373 [2021-11-07 01:26:25,883 INFO L226 Difference]: Without dead ends: 35367 [2021-11-07 01:26:25,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35367 states. [2021-11-07 01:26:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35367 to 35367. [2021-11-07 01:26:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35367 states, 34498 states have (on average 1.290712505072758) internal successors, (44527), 34768 states have internal predecessors, (44527), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:26:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35367 states to 35367 states and 45815 transitions. [2021-11-07 01:26:28,150 INFO L78 Accepts]: Start accepts. Automaton has 35367 states and 45815 transitions. Word has length 175 [2021-11-07 01:26:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:28,151 INFO L470 AbstractCegarLoop]: Abstraction has 35367 states and 45815 transitions. [2021-11-07 01:26:28,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 35367 states and 45815 transitions. [2021-11-07 01:26:28,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-07 01:26:28,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:28,157 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:28,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 01:26:28,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:28,359 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:26:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1984352096, now seen corresponding path program 1 times [2021-11-07 01:26:28,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:28,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552512251] [2021-11-07 01:26:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:28,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:28,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:28,365 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:28,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:26:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:35,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:35,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:37,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:39,658 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:39,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552512251] [2021-11-07 01:26:39,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552512251] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:39,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:39,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:39,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937392810] [2021-11-07 01:26:39,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:39,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:39,661 INFO L87 Difference]: Start difference. First operand 35367 states and 45815 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:42,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:42,601 INFO L93 Difference]: Finished difference Result 35367 states and 45815 transitions. [2021-11-07 01:26:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-07 01:26:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:42,651 INFO L225 Difference]: With dead ends: 35367 [2021-11-07 01:26:42,651 INFO L226 Difference]: Without dead ends: 35361 [2021-11-07 01:26:42,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:42,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35361 states. [2021-11-07 01:26:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35361 to 35361. [2021-11-07 01:26:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35361 states, 34495 states have (on average 1.2906508189592694) internal successors, (44521), 34762 states have internal predecessors, (44521), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:26:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35361 states to 35361 states and 45809 transitions. [2021-11-07 01:26:45,092 INFO L78 Accepts]: Start accepts. Automaton has 35361 states and 45809 transitions. Word has length 177 [2021-11-07 01:26:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:45,092 INFO L470 AbstractCegarLoop]: Abstraction has 35361 states and 45809 transitions. [2021-11-07 01:26:45,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 35361 states and 45809 transitions. [2021-11-07 01:26:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 01:26:45,096 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:45,097 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:45,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-07 01:26:45,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:45,297 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:26:45,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:45,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2839645, now seen corresponding path program 1 times [2021-11-07 01:26:45,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:45,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62865806] [2021-11-07 01:26:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:45,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:45,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:45,302 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:45,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:26:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:51,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:51,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:54,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:26:56,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:56,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62865806] [2021-11-07 01:26:56,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62865806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:56,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:56,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:56,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618478983] [2021-11-07 01:26:56,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:56,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:56,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:56,468 INFO L87 Difference]: Start difference. First operand 35361 states and 45809 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:59,488 INFO L93 Difference]: Finished difference Result 35361 states and 45809 transitions. [2021-11-07 01:26:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-11-07 01:26:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:59,538 INFO L225 Difference]: With dead ends: 35361 [2021-11-07 01:26:59,538 INFO L226 Difference]: Without dead ends: 35355 [2021-11-07 01:26:59,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:59,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35355 states. [2021-11-07 01:27:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35355 to 35355. [2021-11-07 01:27:02,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35355 states, 34492 states have (on average 1.2905891221152732) internal successors, (44515), 34756 states have internal predecessors, (44515), 552 states have call successors, (552), 210 states have call predecessors, (552), 210 states have return successors, (736), 458 states have call predecessors, (736), 552 states have call successors, (736) [2021-11-07 01:27:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35355 states to 35355 states and 45803 transitions. [2021-11-07 01:27:02,183 INFO L78 Accepts]: Start accepts. Automaton has 35355 states and 45803 transitions. Word has length 179 [2021-11-07 01:27:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:02,184 INFO L470 AbstractCegarLoop]: Abstraction has 35355 states and 45803 transitions. [2021-11-07 01:27:02,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:02,184 INFO L276 IsEmpty]: Start isEmpty. Operand 35355 states and 45803 transitions. [2021-11-07 01:27:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-07 01:27:02,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:02,191 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:02,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:02,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:27:02,408 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr1ASSERT_VIOLATIONERROR_FUNCTION (and 135 more)] === [2021-11-07 01:27:02,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1272574608, now seen corresponding path program 1 times [2021-11-07 01:27:02,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:02,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052453212] [2021-11-07 01:27:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:02,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:02,415 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:02,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c13b156-07e2-4148-8958-ec1ac15a3fc7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:27:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:09,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:27:09,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:10,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:10,626 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:27:10,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052453212] [2021-11-07 01:27:10,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052453212] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:27:10,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:27:10,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:27:10,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153062781] [2021-11-07 01:27:10,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:27:10,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:27:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:27:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:27:10,629 INFO L87 Difference]: Start difference. First operand 35355 states and 45803 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:19,320 INFO L93 Difference]: Finished difference Result 104379 states and 135301 transitions. [2021-11-07 01:27:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:27:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-11-07 01:27:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:19,441 INFO L225 Difference]: With dead ends: 104379 [2021-11-07 01:27:19,441 INFO L226 Difference]: Without dead ends: 69753 [2021-11-07 01:27:19,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:27:19,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69753 states.