./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/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_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:07:22,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:07:22,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:07:22,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:07:22,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:07:22,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:07:22,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:07:22,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:07:22,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:07:22,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:07:22,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:07:22,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:07:22,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:07:22,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:07:22,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:07:22,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:07:22,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:07:22,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:07:22,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:07:22,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:07:22,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:07:22,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:07:22,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:07:22,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:07:22,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:07:22,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:07:22,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:07:22,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:07:22,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:07:22,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:07:22,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:07:22,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:07:22,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:07:22,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:07:22,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:07:22,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:07:22,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:07:22,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:07:22,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:07:22,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:07:22,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:07:22,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:07:22,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:07:22,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:07:22,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:07:22,432 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:07:22,432 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:07:22,433 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:07:22,433 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:07:22,433 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:07:22,433 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:07:22,434 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:07:22,434 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:07:22,434 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:07:22,435 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:07:22,435 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:07:22,435 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:07:22,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:07:22,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:07:22,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:07:22,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:07:22,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:07:22,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:07:22,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:07:22,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:07:22,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:07:22,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:07:22,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:07:22,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:07:22,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:22,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:07:22,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:07:22,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:07:22,440 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:07:22,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:07:22,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:07:22,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:07:22,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:07:22,442 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_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-03 05:07:22,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:07:22,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:07:22,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:07:22,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:07:22,730 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:07:22,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-03 05:07:22,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/fa378b7f1/97647e5af42848b78f8648255c46c506/FLAG77a3a9596 [2021-11-03 05:07:23,769 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:07:23,770 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-03 05:07:23,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/fa378b7f1/97647e5af42848b78f8648255c46c506/FLAG77a3a9596 [2021-11-03 05:07:24,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/fa378b7f1/97647e5af42848b78f8648255c46c506 [2021-11-03 05:07:24,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:07:24,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:07:24,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:24,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:07:24,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:07:24,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:24" (1/1) ... [2021-11-03 05:07:24,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62345ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:24, skipping insertion in model container [2021-11-03 05:07:24,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:24" (1/1) ... [2021-11-03 05:07:24,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:07:24,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:26,212 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,455 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,484 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,505 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,520 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,522 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,537 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,616 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,618 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,628 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,632 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,658 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,766 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,841 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,859 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,860 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,860 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,908 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,909 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,916 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,919 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,922 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,932 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,933 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,944 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:26,999 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,013 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,014 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,015 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,039 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,052 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,525 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,675 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,764 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,764 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,876 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,896 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,969 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,970 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,970 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:27,979 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,102 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,148 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,149 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,160 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,162 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,165 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,168 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,168 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,169 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,178 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,260 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,293 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:28,308 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:07:29,314 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-03 05:07:29,317 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-03 05:07:29,318 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-03 05:07:29,326 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-03 05:07:29,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:29,387 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) [2021-11-03 05:07:29,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34797756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:29, skipping insertion in model container [2021-11-03 05:07:29,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:29,388 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:07:29,391 INFO L168 Benchmark]: Toolchain (without parser) took 5269.95 ms. Allocated memory was 100.7 MB in the beginning and 182.5 MB in the end (delta: 81.8 MB). Free memory was 61.6 MB in the beginning and 89.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 57.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:07:29,391 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 100.7 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:07:29,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5267.74 ms. Allocated memory was 100.7 MB in the beginning and 182.5 MB in the end (delta: 81.8 MB). Free memory was 61.4 MB in the beginning and 89.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 57.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:07:29,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 100.7 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5267.74 ms. Allocated memory was 100.7 MB in the beginning and 182.5 MB in the end (delta: 81.8 MB). Free memory was 61.4 MB in the beginning and 89.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 57.7 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_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/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_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:07:31,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:07:31,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:07:31,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:07:31,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:07:31,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:07:31,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:07:31,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:07:31,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:07:31,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:07:31,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:07:31,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:07:31,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:07:31,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:07:31,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:07:31,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:07:31,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:07:31,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:07:31,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:07:31,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:07:31,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:07:31,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:07:31,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:07:31,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:07:31,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:07:31,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:07:31,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:07:31,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:07:31,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:07:31,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:07:31,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:07:31,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:07:31,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:07:31,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:07:31,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:07:31,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:07:31,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:07:31,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:07:31,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:07:31,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:07:31,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:07:31,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:07:31,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:07:31,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:07:31,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:07:31,741 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:07:31,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:07:31,741 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:07:31,741 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:07:31,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:07:31,742 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:07:31,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:07:31,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:07:31,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:07:31,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:07:31,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:07:31,744 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:07:31,744 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:07:31,744 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:07:31,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:07:31,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:07:31,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:07:31,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:07:31,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:07:31,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:07:31,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:31,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:07:31,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:07:31,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:07:31,746 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:07:31,746 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:07:31,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:07:31,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:07:31,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:07:31,747 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_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-03 05:07:32,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:07:32,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:07:32,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:07:32,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:07:32,169 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:07:32,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-03 05:07:32,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/700f09da7/2d6fcbb84c434bfd9a3b959cfc682d5c/FLAG0a13e6a81 [2021-11-03 05:07:33,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:07:33,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-03 05:07:33,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/700f09da7/2d6fcbb84c434bfd9a3b959cfc682d5c/FLAG0a13e6a81 [2021-11-03 05:07:33,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/data/700f09da7/2d6fcbb84c434bfd9a3b959cfc682d5c [2021-11-03 05:07:33,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:07:33,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:07:33,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:33,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:07:33,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:07:33,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:33" (1/1) ... [2021-11-03 05:07:33,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c51837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:33, skipping insertion in model container [2021-11-03 05:07:33,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:33" (1/1) ... [2021-11-03 05:07:33,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:07:33,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:38,543 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-03 05:07:38,551 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-03 05:07:38,552 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-03 05:07:38,553 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-03 05:07:38,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:38,637 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:07:38,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:39,270 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-03 05:07:39,271 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-03 05:07:39,272 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-03 05:07:39,272 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-03 05:07:39,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:39,303 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:07:39,829 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-03 05:07:39,830 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-03 05:07:39,830 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-03 05:07:39,831 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_54e24d8c-2417-4667-909a-faac761e24ce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-03 05:07:39,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:40,125 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:07:40,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40 WrapperNode [2021-11-03 05:07:40,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:40,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:07:40,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:07:40,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:07:40,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:40,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:41,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:07:41,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:07:41,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:07:41,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:07:41,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:41,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:41,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:41,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:42,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:42,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:42,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:43,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:07:43,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:07:43,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:07:43,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:07:43,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (1/1) ... [2021-11-03 05:07:43,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:43,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:07:43,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:07:43,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:07:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2021-11-03 05:07:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2021-11-03 05:07:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-03 05:07:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:07:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-03 05:07:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:07:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2021-11-03 05:07:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2021-11-03 05:07:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:07:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:07:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:07:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-03 05:07:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-03 05:07:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2021-11-03 05:07:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2021-11-03 05:07:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:07:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:07:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2021-11-03 05:07:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2021-11-03 05:07:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 05:07:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:07:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:07:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 05:07:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 05:07:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:07:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2021-11-03 05:07:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2021-11-03 05:07:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:07:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:07:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:07:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:07:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-03 05:07:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-03 05:07:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:07:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:07:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:07:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:07:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:07:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2021-11-03 05:07:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2021-11-03 05:07:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2021-11-03 05:07:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2021-11-03 05:07:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:07:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:07:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:07:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:07:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:07:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:07:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:07:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2021-11-03 05:07:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2021-11-03 05:07:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2021-11-03 05:07:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2021-11-03 05:07:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2021-11-03 05:07:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2021-11-03 05:07:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:07:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:07:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:07:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:07:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2021-11-03 05:07:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2021-11-03 05:07:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2021-11-03 05:07:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2021-11-03 05:07:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-03 05:07:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-03 05:07:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2021-11-03 05:07:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2021-11-03 05:07:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2021-11-03 05:07:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2021-11-03 05:07:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2021-11-03 05:07:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2021-11-03 05:11:13,552 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:11:13,552 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-03 05:11:13,552 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:11:13,553 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:11:13,554 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:11:13,556 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:11:13,556 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:11:13,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:11:13,623 INFO L299 CfgBuilder]: Removed 8152 assume(true) statements. [2021-11-03 05:11:13,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:11:13 BoogieIcfgContainer [2021-11-03 05:11:13,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:11:13,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:11:13,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:11:13,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:11:13,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:07:33" (1/3) ... [2021-11-03 05:11:13,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12110511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:11:13, skipping insertion in model container [2021-11-03 05:11:13,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:40" (2/3) ... [2021-11-03 05:11:13,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12110511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:11:13, skipping insertion in model container [2021-11-03 05:11:13,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:11:13" (3/3) ... [2021-11-03 05:11:13,640 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-03 05:11:13,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:11:13,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 137 error locations. [2021-11-03 05:11:13,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:11:13,731 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 [2021-11-03 05:11:13,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2021-11-03 05:11:13,888 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) [2021-11-03 05:11:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-03 05:11:13,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:13,908 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] [2021-11-03 05:11:13,908 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)] === [2021-11-03 05:11:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1399204513, now seen corresponding path program 1 times [2021-11-03 05:11:13,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:13,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446090523] [2021-11-03 05:11:13,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:13,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:13,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:11:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:19,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:11:19,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:20,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:20,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:11:20,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446090523] [2021-11-03 05:11:20,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446090523] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:11:20,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:11:20,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:11:20,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599958604] [2021-11-03 05:11:20,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:11:20,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:11:20,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:11:20,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:11:20,972 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) [2021-11-03 05:11:26,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:26,193 INFO L93 Difference]: Finished difference Result 30812 states and 42833 transitions. [2021-11-03 05:11:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:11:26,195 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 [2021-11-03 05:11:26,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:26,358 INFO L225 Difference]: With dead ends: 30812 [2021-11-03 05:11:26,358 INFO L226 Difference]: Without dead ends: 21437 [2021-11-03 05:11:26,399 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 [2021-11-03 05:11:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21437 states. [2021-11-03 05:11:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21437 to 21105. [2021-11-03 05:11:27,168 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) [2021-11-03 05:11:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21105 states to 21105 states and 26989 transitions. [2021-11-03 05:11:27,310 INFO L78 Accepts]: Start accepts. Automaton has 21105 states and 26989 transitions. Word has length 125 [2021-11-03 05:11:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:27,312 INFO L470 AbstractCegarLoop]: Abstraction has 21105 states and 26989 transitions. [2021-11-03 05:11:27,313 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) [2021-11-03 05:11:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand 21105 states and 26989 transitions. [2021-11-03 05:11:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-03 05:11:27,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:27,318 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] [2021-11-03 05:11:27,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:27,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:11:27,539 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)] === [2021-11-03 05:11:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:27,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1395175758, now seen corresponding path program 1 times [2021-11-03 05:11:27,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:27,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215120096] [2021-11-03 05:11:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:27,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:27,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:27,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:27,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:11:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:11:33,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:34,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:34,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:11:34,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215120096] [2021-11-03 05:11:34,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215120096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:11:34,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:11:34,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:11:34,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7247884] [2021-11-03 05:11:34,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:11:34,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:11:34,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:11:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:11:34,673 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) [2021-11-03 05:11:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:38,309 INFO L93 Difference]: Finished difference Result 47770 states and 61109 transitions. [2021-11-03 05:11:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:11:38,310 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 [2021-11-03 05:11:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:38,429 INFO L225 Difference]: With dead ends: 47770 [2021-11-03 05:11:38,429 INFO L226 Difference]: Without dead ends: 26941 [2021-11-03 05:11:38,471 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 [2021-11-03 05:11:38,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26941 states. [2021-11-03 05:11:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26941 to 26591. [2021-11-03 05:11:39,371 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) [2021-11-03 05:11:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 34118 transitions. [2021-11-03 05:11:39,658 INFO L78 Accepts]: Start accepts. Automaton has 26591 states and 34118 transitions. Word has length 134 [2021-11-03 05:11:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:39,661 INFO L470 AbstractCegarLoop]: Abstraction has 26591 states and 34118 transitions. [2021-11-03 05:11:39,661 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) [2021-11-03 05:11:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 26591 states and 34118 transitions. [2021-11-03 05:11:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-03 05:11:39,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:39,670 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] [2021-11-03 05:11:39,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:39,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:11:39,891 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)] === [2021-11-03 05:11:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:39,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1834547434, now seen corresponding path program 1 times [2021-11-03 05:11:39,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:39,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736624741] [2021-11-03 05:11:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:39,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:39,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:39,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:39,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:11:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:11:46,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:46,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:47,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:11:47,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736624741] [2021-11-03 05:11:47,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736624741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:11:47,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:11:47,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:11:47,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143936779] [2021-11-03 05:11:47,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:11:47,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:11:47,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:11:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:11:47,220 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) [2021-11-03 05:11:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:50,909 INFO L93 Difference]: Finished difference Result 58722 states and 75313 transitions. [2021-11-03 05:11:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:11:50,909 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 [2021-11-03 05:11:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:51,010 INFO L225 Difference]: With dead ends: 58722 [2021-11-03 05:11:51,011 INFO L226 Difference]: Without dead ends: 32407 [2021-11-03 05:11:51,062 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 [2021-11-03 05:11:51,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32407 states. [2021-11-03 05:11:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32407 to 32055. [2021-11-03 05:11:52,301 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) [2021-11-03 05:11:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32055 states to 32055 states and 41181 transitions. [2021-11-03 05:11:52,365 INFO L78 Accepts]: Start accepts. Automaton has 32055 states and 41181 transitions. Word has length 135 [2021-11-03 05:11:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:52,366 INFO L470 AbstractCegarLoop]: Abstraction has 32055 states and 41181 transitions. [2021-11-03 05:11:52,367 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) [2021-11-03 05:11:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 32055 states and 41181 transitions. [2021-11-03 05:11:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-03 05:11:52,376 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:52,377 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] [2021-11-03 05:11:52,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:52,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:11:52,578 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)] === [2021-11-03 05:11:52,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:52,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1353649086, now seen corresponding path program 1 times [2021-11-03 05:11:52,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:52,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488361230] [2021-11-03 05:11:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:52,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:52,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:52,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:52,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:11:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:58,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:11:58,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:00,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:02,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:02,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488361230] [2021-11-03 05:12:02,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488361230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:02,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:02,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:12:02,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15136997] [2021-11-03 05:12:02,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:12:02,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:12:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:12:02,332 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) [2021-11-03 05:12:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:04,486 INFO L93 Difference]: Finished difference Result 32055 states and 41181 transitions. [2021-11-03 05:12:04,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:04,487 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 [2021-11-03 05:12:04,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:04,579 INFO L225 Difference]: With dead ends: 32055 [2021-11-03 05:12:04,579 INFO L226 Difference]: Without dead ends: 32049 [2021-11-03 05:12:04,589 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 [2021-11-03 05:12:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32049 states. [2021-11-03 05:12:05,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32049 to 32049. [2021-11-03 05:12:05,951 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) [2021-11-03 05:12:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32049 states to 32049 states and 41175 transitions. [2021-11-03 05:12:06,043 INFO L78 Accepts]: Start accepts. Automaton has 32049 states and 41175 transitions. Word has length 157 [2021-11-03 05:12:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:06,044 INFO L470 AbstractCegarLoop]: Abstraction has 32049 states and 41175 transitions. [2021-11-03 05:12:06,044 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) [2021-11-03 05:12:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 32049 states and 41175 transitions. [2021-11-03 05:12:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-03 05:12:06,048 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:06,049 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] [2021-11-03 05:12:06,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:06,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:06,263 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)] === [2021-11-03 05:12:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:06,264 INFO L85 PathProgramCache]: Analyzing trace with hash 518591365, now seen corresponding path program 1 times [2021-11-03 05:12:06,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:06,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288740601] [2021-11-03 05:12:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:06,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:06,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:06,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:06,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:12:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:12,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:12:12,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:14,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:16,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:16,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288740601] [2021-11-03 05:12:16,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288740601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:16,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:16,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:12:16,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397160393] [2021-11-03 05:12:16,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:12:16,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:12:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:12:16,347 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) [2021-11-03 05:12:18,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:18,600 INFO L93 Difference]: Finished difference Result 32049 states and 41175 transitions. [2021-11-03 05:12:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:18,600 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 [2021-11-03 05:12:18,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:18,791 INFO L225 Difference]: With dead ends: 32049 [2021-11-03 05:12:18,791 INFO L226 Difference]: Without dead ends: 32043 [2021-11-03 05:12:18,797 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 [2021-11-03 05:12:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32043 states. [2021-11-03 05:12:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32043 to 32043. [2021-11-03 05:12:20,440 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) [2021-11-03 05:12:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32043 states to 32043 states and 41169 transitions. [2021-11-03 05:12:20,508 INFO L78 Accepts]: Start accepts. Automaton has 32043 states and 41169 transitions. Word has length 159 [2021-11-03 05:12:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:20,508 INFO L470 AbstractCegarLoop]: Abstraction has 32043 states and 41169 transitions. [2021-11-03 05:12:20,508 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) [2021-11-03 05:12:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 32043 states and 41169 transitions. [2021-11-03 05:12:20,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-03 05:12:20,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:20,513 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] [2021-11-03 05:12:20,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:20,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:20,734 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)] === [2021-11-03 05:12:20,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:20,734 INFO L85 PathProgramCache]: Analyzing trace with hash 150368072, now seen corresponding path program 1 times [2021-11-03 05:12:20,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:20,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528442513] [2021-11-03 05:12:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:20,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:20,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:20,740 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:20,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:12:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:26,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:12:26,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:28,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:30,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:30,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528442513] [2021-11-03 05:12:30,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528442513] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:30,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:30,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:12:30,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063718752] [2021-11-03 05:12:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:12:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:12:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:12:30,427 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) [2021-11-03 05:12:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:32,432 INFO L93 Difference]: Finished difference Result 32043 states and 41169 transitions. [2021-11-03 05:12:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:32,432 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 [2021-11-03 05:12:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:32,526 INFO L225 Difference]: With dead ends: 32043 [2021-11-03 05:12:32,526 INFO L226 Difference]: Without dead ends: 32037 [2021-11-03 05:12:32,534 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 [2021-11-03 05:12:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32037 states. [2021-11-03 05:12:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32037 to 32037. [2021-11-03 05:12:34,255 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) [2021-11-03 05:12:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32037 states to 32037 states and 41163 transitions. [2021-11-03 05:12:34,302 INFO L78 Accepts]: Start accepts. Automaton has 32037 states and 41163 transitions. Word has length 161 [2021-11-03 05:12:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:34,303 INFO L470 AbstractCegarLoop]: Abstraction has 32037 states and 41163 transitions. [2021-11-03 05:12:34,303 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) [2021-11-03 05:12:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 32037 states and 41163 transitions. [2021-11-03 05:12:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-03 05:12:34,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:34,307 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] [2021-11-03 05:12:34,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:34,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:34,531 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)] === [2021-11-03 05:12:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1524897909, now seen corresponding path program 1 times [2021-11-03 05:12:34,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:34,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121852237] [2021-11-03 05:12:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:34,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:34,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:34,536 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:34,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:12:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:40,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:12:40,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:42,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:44,454 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:44,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:44,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121852237] [2021-11-03 05:12:44,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121852237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:44,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:44,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:12:44,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652367109] [2021-11-03 05:12:44,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:12:44,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:12:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:12:44,458 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) [2021-11-03 05:12:49,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:49,321 INFO L93 Difference]: Finished difference Result 35763 states and 46286 transitions. [2021-11-03 05:12:49,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:49,321 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 [2021-11-03 05:12:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:49,401 INFO L225 Difference]: With dead ends: 35763 [2021-11-03 05:12:49,401 INFO L226 Difference]: Without dead ends: 35757 [2021-11-03 05:12:49,411 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 [2021-11-03 05:12:49,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35757 states. [2021-11-03 05:12:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35757 to 35403. [2021-11-03 05:12:51,170 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) [2021-11-03 05:12:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35403 states to 35403 states and 45851 transitions. [2021-11-03 05:12:51,223 INFO L78 Accepts]: Start accepts. Automaton has 35403 states and 45851 transitions. Word has length 163 [2021-11-03 05:12:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:51,223 INFO L470 AbstractCegarLoop]: Abstraction has 35403 states and 45851 transitions. [2021-11-03 05:12:51,223 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) [2021-11-03 05:12:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 35403 states and 45851 transitions. [2021-11-03 05:12:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-03 05:12:51,228 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:51,228 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] [2021-11-03 05:12:51,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:51,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:51,443 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)] === [2021-11-03 05:12:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:51,443 INFO L85 PathProgramCache]: Analyzing trace with hash -842769330, now seen corresponding path program 1 times [2021-11-03 05:12:51,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:51,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372771371] [2021-11-03 05:12:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:51,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:51,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:51,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:51,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:12:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:57,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:12:57,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:12:59,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:01,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:01,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372771371] [2021-11-03 05:13:01,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372771371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:13:01,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:13:01,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:13:01,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918451765] [2021-11-03 05:13:01,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:13:01,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:13:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:13:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:13:01,486 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) [2021-11-03 05:13:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:13:04,321 INFO L93 Difference]: Finished difference Result 35403 states and 45851 transitions. [2021-11-03 05:13:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:13:04,321 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 [2021-11-03 05:13:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:13:04,391 INFO L225 Difference]: With dead ends: 35403 [2021-11-03 05:13:04,392 INFO L226 Difference]: Without dead ends: 35397 [2021-11-03 05:13:04,404 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:13:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35397 states. [2021-11-03 05:13:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35397 to 35397. [2021-11-03 05:13:06,086 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) [2021-11-03 05:13:06,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35397 states to 35397 states and 45845 transitions. [2021-11-03 05:13:06,142 INFO L78 Accepts]: Start accepts. Automaton has 35397 states and 45845 transitions. Word has length 165 [2021-11-03 05:13:06,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:13:06,143 INFO L470 AbstractCegarLoop]: Abstraction has 35397 states and 45845 transitions. [2021-11-03 05:13:06,143 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) [2021-11-03 05:13:06,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35397 states and 45845 transitions. [2021-11-03 05:13:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-03 05:13:06,148 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:13:06,148 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] [2021-11-03 05:13:06,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:13:06,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:13:06,363 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)] === [2021-11-03 05:13:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:13:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1847766417, now seen corresponding path program 1 times [2021-11-03 05:13:06,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:13:06,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313276668] [2021-11-03 05:13:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:06,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:13:06,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:13:06,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:13:06,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:13:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:12,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:13:12,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:14,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:16,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:16,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313276668] [2021-11-03 05:13:16,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313276668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:13:16,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:13:16,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:13:16,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125342169] [2021-11-03 05:13:16,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:13:16,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:13:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:13:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:13:16,576 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) [2021-11-03 05:13:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:13:18,957 INFO L93 Difference]: Finished difference Result 35397 states and 45845 transitions. [2021-11-03 05:13:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:13:18,957 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 [2021-11-03 05:13:18,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:13:19,017 INFO L225 Difference]: With dead ends: 35397 [2021-11-03 05:13:19,018 INFO L226 Difference]: Without dead ends: 35391 [2021-11-03 05:13:19,029 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 [2021-11-03 05:13:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35391 states. [2021-11-03 05:13:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35391 to 35391. [2021-11-03 05:13:20,716 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) [2021-11-03 05:13:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 45839 transitions. [2021-11-03 05:13:20,770 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 45839 transitions. Word has length 167 [2021-11-03 05:13:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:13:20,771 INFO L470 AbstractCegarLoop]: Abstraction has 35391 states and 45839 transitions. [2021-11-03 05:13:20,771 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) [2021-11-03 05:13:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 45839 transitions. [2021-11-03 05:13:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-03 05:13:20,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:13:20,775 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] [2021-11-03 05:13:20,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:13:20,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:13:20,991 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)] === [2021-11-03 05:13:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:13:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1882307412, now seen corresponding path program 1 times [2021-11-03 05:13:20,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:13:20,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753460083] [2021-11-03 05:13:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:20,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:13:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:13:20,995 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:13:20,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:13:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:27,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:13:27,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:29,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:31,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:31,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753460083] [2021-11-03 05:13:31,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753460083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:13:31,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:13:31,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:13:31,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503031299] [2021-11-03 05:13:31,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:13:31,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:13:31,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:13:31,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:13:31,247 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) [2021-11-03 05:13:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:13:34,160 INFO L93 Difference]: Finished difference Result 35391 states and 45839 transitions. [2021-11-03 05:13:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:13:34,161 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 [2021-11-03 05:13:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:13:34,226 INFO L225 Difference]: With dead ends: 35391 [2021-11-03 05:13:34,226 INFO L226 Difference]: Without dead ends: 35385 [2021-11-03 05:13:34,235 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 [2021-11-03 05:13:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35385 states. [2021-11-03 05:13:35,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35385 to 35385. [2021-11-03 05:13:35,839 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) [2021-11-03 05:13:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35385 states to 35385 states and 45833 transitions. [2021-11-03 05:13:35,898 INFO L78 Accepts]: Start accepts. Automaton has 35385 states and 45833 transitions. Word has length 169 [2021-11-03 05:13:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:13:35,899 INFO L470 AbstractCegarLoop]: Abstraction has 35385 states and 45833 transitions. [2021-11-03 05:13:35,899 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) [2021-11-03 05:13:35,899 INFO L276 IsEmpty]: Start isEmpty. Operand 35385 states and 45833 transitions. [2021-11-03 05:13:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-03 05:13:35,901 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:13:35,902 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] [2021-11-03 05:13:35,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:13:36,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:13:36,107 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)] === [2021-11-03 05:13:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:13:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash 716465559, now seen corresponding path program 1 times [2021-11-03 05:13:36,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:13:36,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071764136] [2021-11-03 05:13:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:36,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:13:36,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:13:36,112 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:13:36,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:13:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:42,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:13:42,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:44,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:46,957 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:13:46,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:46,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071764136] [2021-11-03 05:13:46,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071764136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:13:46,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:13:46,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:13:46,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141944916] [2021-11-03 05:13:46,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:13:46,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:13:46,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:13:46,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:13:46,960 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) [2021-11-03 05:13:51,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:13:51,585 INFO L93 Difference]: Finished difference Result 35385 states and 45833 transitions. [2021-11-03 05:13:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:13:51,585 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 [2021-11-03 05:13:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:13:51,640 INFO L225 Difference]: With dead ends: 35385 [2021-11-03 05:13:51,641 INFO L226 Difference]: Without dead ends: 35379 [2021-11-03 05:13:51,650 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 [2021-11-03 05:13:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35379 states. [2021-11-03 05:13:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35379 to 35379. [2021-11-03 05:13:53,545 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) [2021-11-03 05:13:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35379 states to 35379 states and 45827 transitions. [2021-11-03 05:13:53,601 INFO L78 Accepts]: Start accepts. Automaton has 35379 states and 45827 transitions. Word has length 171 [2021-11-03 05:13:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:13:53,601 INFO L470 AbstractCegarLoop]: Abstraction has 35379 states and 45827 transitions. [2021-11-03 05:13:53,601 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) [2021-11-03 05:13:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 35379 states and 45827 transitions. [2021-11-03 05:13:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-03 05:13:53,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:13:53,604 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] [2021-11-03 05:13:53,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:13:53,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:13:53,827 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)] === [2021-11-03 05:13:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:13:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1328909402, now seen corresponding path program 1 times [2021-11-03 05:13:53,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:13:53,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489133170] [2021-11-03 05:13:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:53,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:13:53,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:13:53,832 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:13:53,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:14:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:00,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:14:00,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:02,466 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:02,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:04,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:04,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489133170] [2021-11-03 05:14:04,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489133170] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:04,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:04,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:04,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623884825] [2021-11-03 05:14:04,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:14:04,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:14:04,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:14:04,494 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) [2021-11-03 05:14:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:07,468 INFO L93 Difference]: Finished difference Result 35379 states and 45827 transitions. [2021-11-03 05:14:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:14:07,469 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 [2021-11-03 05:14:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:07,514 INFO L225 Difference]: With dead ends: 35379 [2021-11-03 05:14:07,515 INFO L226 Difference]: Without dead ends: 35373 [2021-11-03 05:14:07,520 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 [2021-11-03 05:14:07,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35373 states. [2021-11-03 05:14:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35373 to 35373. [2021-11-03 05:14:09,520 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) [2021-11-03 05:14:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35373 states to 35373 states and 45821 transitions. [2021-11-03 05:14:09,575 INFO L78 Accepts]: Start accepts. Automaton has 35373 states and 45821 transitions. Word has length 173 [2021-11-03 05:14:09,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:09,576 INFO L470 AbstractCegarLoop]: Abstraction has 35373 states and 45821 transitions. [2021-11-03 05:14:09,576 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) [2021-11-03 05:14:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 35373 states and 45821 transitions. [2021-11-03 05:14:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-03 05:14:09,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:09,581 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] [2021-11-03 05:14:09,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:09,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:09,803 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)] === [2021-11-03 05:14:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:09,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1476923293, now seen corresponding path program 1 times [2021-11-03 05:14:09,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:09,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530767028] [2021-11-03 05:14:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:09,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:09,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:09,807 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:09,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:14:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:16,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:14:16,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:18,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:20,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:20,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530767028] [2021-11-03 05:14:20,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530767028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:20,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:20,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:20,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702260197] [2021-11-03 05:14:20,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:14:20,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:20,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:14:20,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:14:20,234 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) [2021-11-03 05:14:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:23,537 INFO L93 Difference]: Finished difference Result 35373 states and 45821 transitions. [2021-11-03 05:14:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:14:23,537 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 [2021-11-03 05:14:23,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:23,595 INFO L225 Difference]: With dead ends: 35373 [2021-11-03 05:14:23,595 INFO L226 Difference]: Without dead ends: 35367 [2021-11-03 05:14:23,600 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 [2021-11-03 05:14:23,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35367 states. [2021-11-03 05:14:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35367 to 35367. [2021-11-03 05:14:25,530 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) [2021-11-03 05:14:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35367 states to 35367 states and 45815 transitions. [2021-11-03 05:14:25,582 INFO L78 Accepts]: Start accepts. Automaton has 35367 states and 45815 transitions. Word has length 175 [2021-11-03 05:14:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:25,582 INFO L470 AbstractCegarLoop]: Abstraction has 35367 states and 45815 transitions. [2021-11-03 05:14:25,582 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) [2021-11-03 05:14:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 35367 states and 45815 transitions. [2021-11-03 05:14:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-03 05:14:25,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:25,587 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] [2021-11-03 05:14:25,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:25,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:25,787 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)] === [2021-11-03 05:14:25,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:25,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1984352096, now seen corresponding path program 1 times [2021-11-03 05:14:25,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:25,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980037276] [2021-11-03 05:14:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:25,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:25,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:25,791 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:25,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:14:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:32,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:14:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:34,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:36,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:36,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980037276] [2021-11-03 05:14:36,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980037276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:36,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:36,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:36,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377348618] [2021-11-03 05:14:36,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:14:36,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:36,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:14:36,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:14:36,572 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) [2021-11-03 05:14:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:39,279 INFO L93 Difference]: Finished difference Result 35367 states and 45815 transitions. [2021-11-03 05:14:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:14:39,279 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 [2021-11-03 05:14:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:39,323 INFO L225 Difference]: With dead ends: 35367 [2021-11-03 05:14:39,323 INFO L226 Difference]: Without dead ends: 35361 [2021-11-03 05:14:39,330 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 [2021-11-03 05:14:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35361 states. [2021-11-03 05:14:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35361 to 35361. [2021-11-03 05:14:41,425 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) [2021-11-03 05:14:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35361 states to 35361 states and 45809 transitions. [2021-11-03 05:14:41,480 INFO L78 Accepts]: Start accepts. Automaton has 35361 states and 45809 transitions. Word has length 177 [2021-11-03 05:14:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:41,480 INFO L470 AbstractCegarLoop]: Abstraction has 35361 states and 45809 transitions. [2021-11-03 05:14:41,481 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) [2021-11-03 05:14:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 35361 states and 45809 transitions. [2021-11-03 05:14:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-03 05:14:41,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:41,485 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] [2021-11-03 05:14:41,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-03 05:14:41,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:41,707 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)] === [2021-11-03 05:14:41,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:41,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2839645, now seen corresponding path program 1 times [2021-11-03 05:14:41,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:41,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498636492] [2021-11-03 05:14:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:41,710 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:41,711 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:41,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 05:14:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:48,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:14:48,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:50,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 05:14:52,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:52,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498636492] [2021-11-03 05:14:52,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498636492] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:52,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:52,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:52,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312223814] [2021-11-03 05:14:52,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:14:52,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:52,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:14:52,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:14:52,743 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) [2021-11-03 05:14:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:55,771 INFO L93 Difference]: Finished difference Result 35361 states and 45809 transitions. [2021-11-03 05:14:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:14:55,772 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 [2021-11-03 05:14:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:55,814 INFO L225 Difference]: With dead ends: 35361 [2021-11-03 05:14:55,814 INFO L226 Difference]: Without dead ends: 35355 [2021-11-03 05:14:55,821 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 [2021-11-03 05:14:55,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35355 states. [2021-11-03 05:14:58,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35355 to 35355. [2021-11-03 05:14:58,074 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) [2021-11-03 05:14:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35355 states to 35355 states and 45803 transitions. [2021-11-03 05:14:58,284 INFO L78 Accepts]: Start accepts. Automaton has 35355 states and 45803 transitions. Word has length 179 [2021-11-03 05:14:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:58,285 INFO L470 AbstractCegarLoop]: Abstraction has 35355 states and 45803 transitions. [2021-11-03 05:14:58,285 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) [2021-11-03 05:14:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 35355 states and 45803 transitions. [2021-11-03 05:14:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-03 05:14:58,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:58,290 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] [2021-11-03 05:14:58,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:58,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:58,503 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)] === [2021-11-03 05:14:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1272574608, now seen corresponding path program 1 times [2021-11-03 05:14:58,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:58,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672651846] [2021-11-03 05:14:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:58,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:58,507 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:58,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e24d8c-2417-4667-909a-faac761e24ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 05:15:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:15:05,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:15:05,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:15:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:15:05,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:15:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:15:06,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:15:06,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672651846] [2021-11-03 05:15:06,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672651846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:15:06,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:06,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:15:06,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982896483] [2021-11-03 05:15:06,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:15:06,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:15:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:15:06,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:15:06,349 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) [2021-11-03 05:15:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:15:14,893 INFO L93 Difference]: Finished difference Result 104379 states and 135301 transitions. [2021-11-03 05:15:14,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:15:14,893 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 [2021-11-03 05:15:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:15:14,999 INFO L225 Difference]: With dead ends: 104379 [2021-11-03 05:15:14,999 INFO L226 Difference]: Without dead ends: 69753 [2021-11-03 05:15:15,057 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 [2021-11-03 05:15:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69753 states.