./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 fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:53:31,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:53:31,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:53:31,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:53:31,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:53:31,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:53:31,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:53:31,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:53:31,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:53:31,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:53:31,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:53:31,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:53:31,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:53:31,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:53:31,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:53:31,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:53:31,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:53:31,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:53:31,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:53:31,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:53:31,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:53:31,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:53:31,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:53:31,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:53:31,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:53:31,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:53:31,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:53:31,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:53:31,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:53:31,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:53:31,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:53:31,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:53:31,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:53:31,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:53:31,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:53:31,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:53:31,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:53:31,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:53:31,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:53:31,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:53:31,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:53:31,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:53:31,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:53:31,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:53:31,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:53:31,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:53:31,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:53:31,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:53:31,298 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:53:31,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:53:31,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:53:31,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:53:31,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:53:31,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:53:31,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:53:31,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:53:31,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:53:31,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:53:31,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:53:31,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:53:31,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:53:31,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:31,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:53:31,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:53:31,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:53:31,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:53:31,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-23 02:53:31,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:53:31,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:53:31,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:53:31,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:53:31,513 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:53:31,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-23 02:53:31,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8cf2c5c/ec699f8f73e64d2cbc386c45d15cfe42/FLAGe9ab8ef4d [2021-11-23 02:53:32,225 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:53:32,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-23 02:53:32,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8cf2c5c/ec699f8f73e64d2cbc386c45d15cfe42/FLAGe9ab8ef4d [2021-11-23 02:53:32,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d8cf2c5c/ec699f8f73e64d2cbc386c45d15cfe42 [2021-11-23 02:53:32,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:53:32,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:53:32,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:32,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:53:32,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:53:32,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:32" (1/1) ... [2021-11-23 02:53:32,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3050b679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:32, skipping insertion in model container [2021-11-23 02:53:32,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:32" (1/1) ... [2021-11-23 02:53:32,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:53:32,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:53:36,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-23 02:53:36,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-23 02:53:36,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-23 02:53:36,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-23 02:53:36,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:36,387 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:53:36,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2021-11-23 02:53:36,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2021-11-23 02:53:36,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2021-11-23 02:53:36,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2021-11-23 02:53:36,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:36,820 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:53:36,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36 WrapperNode [2021-11-23 02:53:36,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:36,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:36,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:53:36,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:53:36,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:36,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:37,551 INFO L137 Inliner]: procedures = 584, calls = 2495, calls flagged for inlining = 1285, calls inlined = 4006, statements flattened = 41420 [2021-11-23 02:53:37,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:37,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:53:37,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:53:37,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:53:37,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:37,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:37,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:37,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:38,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:38,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:38,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:38,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:53:38,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:53:38,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:53:38,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:53:38,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (1/1) ... [2021-11-23 02:53:38,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:38,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:53:38,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:53:38,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:53:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2021-11-23 02:53:38,974 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2021-11-23 02:53:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 02:53:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 02:53:38,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 02:53:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2021-11-23 02:53:38,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:53:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 02:53:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 02:53:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2021-11-23 02:53:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2021-11-23 02:53:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:53:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:53:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:53:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2021-11-23 02:53:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2021-11-23 02:53:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:53:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2021-11-23 02:53:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2021-11-23 02:53:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:53:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:53:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 02:53:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 02:53:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:53:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:53:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2021-11-23 02:53:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2021-11-23 02:53:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2021-11-23 02:53:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2021-11-23 02:53:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:53:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:53:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:53:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2021-11-23 02:53:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2021-11-23 02:53:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2021-11-23 02:53:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2021-11-23 02:53:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2021-11-23 02:53:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2021-11-23 02:53:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:53:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2021-11-23 02:53:38,981 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2021-11-23 02:53:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2021-11-23 02:53:38,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2021-11-23 02:53:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2021-11-23 02:53:38,981 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2021-11-23 02:53:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2021-11-23 02:53:38,982 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2021-11-23 02:53:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:53:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2021-11-23 02:53:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2021-11-23 02:53:39,940 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:53:39,941 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:53:55,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 02:53:55,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:53:55,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:53:55,710 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 02:53:55,710 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:53:55,710 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:53:55,711 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:53:55,718 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:53:55,754 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:53:55,754 INFO L301 CfgBuilder]: Removed 142 assume(true) statements. [2021-11-23 02:53:55,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:55 BoogieIcfgContainer [2021-11-23 02:53:55,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:53:55,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:53:55,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:53:55,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:53:55,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:53:32" (1/3) ... [2021-11-23 02:53:55,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e137be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:55, skipping insertion in model container [2021-11-23 02:53:55,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:36" (2/3) ... [2021-11-23 02:53:55,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e137be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:55, skipping insertion in model container [2021-11-23 02:53:55,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:55" (3/3) ... [2021-11-23 02:53:55,769 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-23 02:53:55,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:53:55,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 137 error locations. [2021-11-23 02:53:55,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:53:55,852 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=PETRI_NET, 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 [2021-11-23 02:53:55,852 INFO L340 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2021-11-23 02:53:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 9371 states, 9136 states have (on average 1.3930604203152364) internal successors, (12727), 9290 states have internal predecessors, (12727), 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) [2021-11-23 02:53:55,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-23 02:53:55,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:55,985 INFO L514 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] [2021-11-23 02:53:55,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:53:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:55,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1889355956, now seen corresponding path program 1 times [2021-11-23 02:53:55,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:53:55,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491008780] [2021-11-23 02:53:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:55,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:56,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:53:56,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491008780] [2021-11-23 02:53:56,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491008780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:56,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:56,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:56,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624907472] [2021-11-23 02:53:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:56,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:56,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:53:56,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:56,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:56,580 INFO L87 Difference]: Start difference. First operand has 9371 states, 9136 states have (on average 1.3930604203152364) internal successors, (12727), 9290 states have internal predecessors, (12727), 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 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-11-23 02:53:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:57,417 INFO L93 Difference]: Finished difference Result 25477 states and 34696 transitions. [2021-11-23 02:53:57,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:57,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2021-11-23 02:53:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:57,507 INFO L225 Difference]: With dead ends: 25477 [2021-11-23 02:53:57,508 INFO L226 Difference]: Without dead ends: 15738 [2021-11-23 02:53:57,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:57,544 INFO L933 BasicCegarLoop]: 10976 mSDtfsCounter, 10111 mSDsluCounter, 10815 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10111 SdHoareTripleChecker+Valid, 21791 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:57,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10111 Valid, 21791 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:53:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15738 states. [2021-11-23 02:53:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15738 to 15572. [2021-11-23 02:53:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15572 states, 15239 states have (on average 1.2578253166218256) internal successors, (19168), 15411 states have internal predecessors, (19168), 158 states have call successors, (158), 38 states have call predecessors, (158), 38 states have return successors, (158), 136 states have call predecessors, (158), 158 states have call successors, (158) [2021-11-23 02:53:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15572 states to 15572 states and 19484 transitions. [2021-11-23 02:53:58,019 INFO L78 Accepts]: Start accepts. Automaton has 15572 states and 19484 transitions. Word has length 126 [2021-11-23 02:53:58,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:58,020 INFO L470 AbstractCegarLoop]: Abstraction has 15572 states and 19484 transitions. [2021-11-23 02:53:58,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-11-23 02:53:58,022 INFO L276 IsEmpty]: Start isEmpty. Operand 15572 states and 19484 transitions. [2021-11-23 02:53:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 02:53:58,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:58,027 INFO L514 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] [2021-11-23 02:53:58,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:53:58,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:53:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1651934589, now seen corresponding path program 1 times [2021-11-23 02:53:58,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:53:58,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864747994] [2021-11-23 02:53:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:58,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:58,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:53:58,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864747994] [2021-11-23 02:53:58,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864747994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:58,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:58,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:58,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6293594] [2021-11-23 02:53:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:58,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:58,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:53:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:58,226 INFO L87 Difference]: Start difference. First operand 15572 states and 19484 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) [2021-11-23 02:53:58,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:58,921 INFO L93 Difference]: Finished difference Result 32805 states and 40996 transitions. [2021-11-23 02:53:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:58,922 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 [2021-11-23 02:53:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:58,990 INFO L225 Difference]: With dead ends: 32805 [2021-11-23 02:53:58,991 INFO L226 Difference]: Without dead ends: 17510 [2021-11-23 02:53:59,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:59,027 INFO L933 BasicCegarLoop]: 10160 mSDtfsCounter, 6037 mSDsluCounter, 10050 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6037 SdHoareTripleChecker+Valid, 20210 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:59,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6037 Valid, 20210 Invalid, 71 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:53:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17510 states. [2021-11-23 02:53:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17510 to 17150. [2021-11-23 02:53:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17150 states, 16769 states have (on average 1.260182479575407) internal successors, (21132), 16951 states have internal predecessors, (21132), 187 states have call successors, (187), 57 states have call predecessors, (187), 57 states have return successors, (187), 160 states have call predecessors, (187), 187 states have call successors, (187) [2021-11-23 02:53:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17150 states to 17150 states and 21506 transitions. [2021-11-23 02:53:59,563 INFO L78 Accepts]: Start accepts. Automaton has 17150 states and 21506 transitions. Word has length 135 [2021-11-23 02:53:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:59,563 INFO L470 AbstractCegarLoop]: Abstraction has 17150 states and 21506 transitions. [2021-11-23 02:53:59,564 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) [2021-11-23 02:53:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 17150 states and 21506 transitions. [2021-11-23 02:53:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-23 02:53:59,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:59,567 INFO L514 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, 1] [2021-11-23 02:53:59,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:53:59,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:53:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2124904991, now seen corresponding path program 1 times [2021-11-23 02:53:59,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:53:59,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410134330] [2021-11-23 02:53:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:59,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:59,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:53:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410134330] [2021-11-23 02:53:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410134330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:59,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:59,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:59,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198182782] [2021-11-23 02:53:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:59,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:59,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:53:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:59,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:59,761 INFO L87 Difference]: Start difference. First operand 17150 states and 21506 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 02:54:00,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:00,208 INFO L93 Difference]: Finished difference Result 35470 states and 44393 transitions. [2021-11-23 02:54:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:54:00,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 136 [2021-11-23 02:54:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:00,260 INFO L225 Difference]: With dead ends: 35470 [2021-11-23 02:54:00,261 INFO L226 Difference]: Without dead ends: 18597 [2021-11-23 02:54:00,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:00,303 INFO L933 BasicCegarLoop]: 15133 mSDtfsCounter, 5983 mSDsluCounter, 10051 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5983 SdHoareTripleChecker+Valid, 25184 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:00,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5983 Valid, 25184 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:00,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18597 states. [2021-11-23 02:54:00,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18597 to 18235. [2021-11-23 02:54:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18235 states, 17854 states have (on average 1.2602217990366305) internal successors, (22500), 18036 states have internal predecessors, (22500), 187 states have call successors, (187), 57 states have call predecessors, (187), 57 states have return successors, (187), 160 states have call predecessors, (187), 187 states have call successors, (187) [2021-11-23 02:54:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18235 states to 18235 states and 22874 transitions. [2021-11-23 02:54:00,838 INFO L78 Accepts]: Start accepts. Automaton has 18235 states and 22874 transitions. Word has length 136 [2021-11-23 02:54:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:00,839 INFO L470 AbstractCegarLoop]: Abstraction has 18235 states and 22874 transitions. [2021-11-23 02:54:00,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 02:54:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 18235 states and 22874 transitions. [2021-11-23 02:54:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 02:54:00,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:00,855 INFO L514 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] [2021-11-23 02:54:00,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:54:00,856 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:00,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1540834536, now seen corresponding path program 1 times [2021-11-23 02:54:00,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:00,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513893801] [2021-11-23 02:54:00,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:00,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:01,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:01,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513893801] [2021-11-23 02:54:01,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513893801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:01,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:01,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:01,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712739984] [2021-11-23 02:54:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:01,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:01,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:01,153 INFO L87 Difference]: Start difference. First operand 18235 states and 22874 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 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) [2021-11-23 02:54:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:01,639 INFO L93 Difference]: Finished difference Result 18235 states and 22874 transitions. [2021-11-23 02:54:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 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 159 [2021-11-23 02:54:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:01,684 INFO L225 Difference]: With dead ends: 18235 [2021-11-23 02:54:01,684 INFO L226 Difference]: Without dead ends: 18229 [2021-11-23 02:54:01,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:01,697 INFO L933 BasicCegarLoop]: 10101 mSDtfsCounter, 9967 mSDsluCounter, 9951 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9967 SdHoareTripleChecker+Valid, 20052 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:01,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9967 Valid, 20052 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:01,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18229 states. [2021-11-23 02:54:02,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18229 to 18229. [2021-11-23 02:54:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18229 states, 17851 states have (on average 1.2600974735308945) internal successors, (22494), 18030 states have internal predecessors, (22494), 187 states have call successors, (187), 57 states have call predecessors, (187), 57 states have return successors, (187), 160 states have call predecessors, (187), 187 states have call successors, (187) [2021-11-23 02:54:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18229 states to 18229 states and 22868 transitions. [2021-11-23 02:54:02,092 INFO L78 Accepts]: Start accepts. Automaton has 18229 states and 22868 transitions. Word has length 159 [2021-11-23 02:54:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:02,093 INFO L470 AbstractCegarLoop]: Abstraction has 18229 states and 22868 transitions. [2021-11-23 02:54:02,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 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) [2021-11-23 02:54:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 18229 states and 22868 transitions. [2021-11-23 02:54:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 02:54:02,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:02,096 INFO L514 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] [2021-11-23 02:54:02,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:54:02,097 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:02,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1021451861, now seen corresponding path program 1 times [2021-11-23 02:54:02,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:02,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778496090] [2021-11-23 02:54:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:02,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:02,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778496090] [2021-11-23 02:54:02,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778496090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:02,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:02,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:02,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542465514] [2021-11-23 02:54:02,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:02,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:02,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:02,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:02,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:02,368 INFO L87 Difference]: Start difference. First operand 18229 states and 22868 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2021-11-23 02:54:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:02,765 INFO L93 Difference]: Finished difference Result 18229 states and 22868 transitions. [2021-11-23 02:54:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:02,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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 161 [2021-11-23 02:54:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:02,812 INFO L225 Difference]: With dead ends: 18229 [2021-11-23 02:54:02,812 INFO L226 Difference]: Without dead ends: 18223 [2021-11-23 02:54:02,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:02,827 INFO L933 BasicCegarLoop]: 10095 mSDtfsCounter, 9956 mSDsluCounter, 9948 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9956 SdHoareTripleChecker+Valid, 20043 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:02,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9956 Valid, 20043 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18223 states. [2021-11-23 02:54:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18223 to 18223. [2021-11-23 02:54:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18223 states, 17848 states have (on average 1.25997310623039) internal successors, (22488), 18024 states have internal predecessors, (22488), 187 states have call successors, (187), 57 states have call predecessors, (187), 57 states have return successors, (187), 160 states have call predecessors, (187), 187 states have call successors, (187) [2021-11-23 02:54:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18223 states to 18223 states and 22862 transitions. [2021-11-23 02:54:03,339 INFO L78 Accepts]: Start accepts. Automaton has 18223 states and 22862 transitions. Word has length 161 [2021-11-23 02:54:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:03,340 INFO L470 AbstractCegarLoop]: Abstraction has 18223 states and 22862 transitions. [2021-11-23 02:54:03,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2021-11-23 02:54:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 18223 states and 22862 transitions. [2021-11-23 02:54:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-23 02:54:03,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:03,343 INFO L514 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] [2021-11-23 02:54:03,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:54:03,343 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1932548846, now seen corresponding path program 1 times [2021-11-23 02:54:03,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:03,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352057096] [2021-11-23 02:54:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:03,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:03,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:03,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352057096] [2021-11-23 02:54:03,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352057096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:03,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:03,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:03,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930690504] [2021-11-23 02:54:03,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:03,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:03,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:03,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:03,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:03,524 INFO L87 Difference]: Start difference. First operand 18223 states and 22862 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2021-11-23 02:54:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:03,962 INFO L93 Difference]: Finished difference Result 18223 states and 22862 transitions. [2021-11-23 02:54:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:03,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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 163 [2021-11-23 02:54:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:04,012 INFO L225 Difference]: With dead ends: 18223 [2021-11-23 02:54:04,013 INFO L226 Difference]: Without dead ends: 18217 [2021-11-23 02:54:04,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:04,030 INFO L933 BasicCegarLoop]: 10089 mSDtfsCounter, 9948 mSDsluCounter, 9945 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9948 SdHoareTripleChecker+Valid, 20034 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:04,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9948 Valid, 20034 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18217 states. [2021-11-23 02:54:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18217 to 18217. [2021-11-23 02:54:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18217 states, 17845 states have (on average 1.2598486971140375) internal successors, (22482), 18018 states have internal predecessors, (22482), 187 states have call successors, (187), 57 states have call predecessors, (187), 57 states have return successors, (187), 160 states have call predecessors, (187), 187 states have call successors, (187) [2021-11-23 02:54:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18217 states to 18217 states and 22856 transitions. [2021-11-23 02:54:04,552 INFO L78 Accepts]: Start accepts. Automaton has 18217 states and 22856 transitions. Word has length 163 [2021-11-23 02:54:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:04,553 INFO L470 AbstractCegarLoop]: Abstraction has 18217 states and 22856 transitions. [2021-11-23 02:54:04,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2021-11-23 02:54:04,553 INFO L276 IsEmpty]: Start isEmpty. Operand 18217 states and 22856 transitions. [2021-11-23 02:54:04,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-23 02:54:04,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:04,556 INFO L514 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] [2021-11-23 02:54:04,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:54:04,556 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1753845937, now seen corresponding path program 1 times [2021-11-23 02:54:04,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:04,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945447331] [2021-11-23 02:54:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:04,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:04,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945447331] [2021-11-23 02:54:04,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945447331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:04,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:04,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:04,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830817595] [2021-11-23 02:54:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:04,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:04,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:04,768 INFO L87 Difference]: Start difference. First operand 18217 states and 22856 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2021-11-23 02:54:07,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:54:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:07,556 INFO L93 Difference]: Finished difference Result 20225 states and 25556 transitions. [2021-11-23 02:54:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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 165 [2021-11-23 02:54:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:07,608 INFO L225 Difference]: With dead ends: 20225 [2021-11-23 02:54:07,609 INFO L226 Difference]: Without dead ends: 20219 [2021-11-23 02:54:07,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:07,624 INFO L933 BasicCegarLoop]: 10673 mSDtfsCounter, 9409 mSDsluCounter, 12053 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9409 SdHoareTripleChecker+Valid, 22726 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:07,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9409 Valid, 22726 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:54:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20219 states. [2021-11-23 02:54:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20219 to 20029. [2021-11-23 02:54:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20029 states, 19523 states have (on average 1.2644060851303591) internal successors, (24685), 19729 states have internal predecessors, (24685), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20029 states to 20029 states and 25329 transitions. [2021-11-23 02:54:08,213 INFO L78 Accepts]: Start accepts. Automaton has 20029 states and 25329 transitions. Word has length 165 [2021-11-23 02:54:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:08,213 INFO L470 AbstractCegarLoop]: Abstraction has 20029 states and 25329 transitions. [2021-11-23 02:54:08,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2021-11-23 02:54:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 20029 states and 25329 transitions. [2021-11-23 02:54:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 02:54:08,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:08,217 INFO L514 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] [2021-11-23 02:54:08,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:54:08,218 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1819042548, now seen corresponding path program 1 times [2021-11-23 02:54:08,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:08,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596485369] [2021-11-23 02:54:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:08,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:08,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596485369] [2021-11-23 02:54:08,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596485369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:08,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:08,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:08,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273533596] [2021-11-23 02:54:08,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:08,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:08,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:08,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:08,388 INFO L87 Difference]: Start difference. First operand 20029 states and 25329 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2021-11-23 02:54:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:08,874 INFO L93 Difference]: Finished difference Result 20029 states and 25329 transitions. [2021-11-23 02:54:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:08,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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 167 [2021-11-23 02:54:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:08,926 INFO L225 Difference]: With dead ends: 20029 [2021-11-23 02:54:08,926 INFO L226 Difference]: Without dead ends: 20023 [2021-11-23 02:54:08,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:08,938 INFO L933 BasicCegarLoop]: 10069 mSDtfsCounter, 9872 mSDsluCounter, 9975 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9872 SdHoareTripleChecker+Valid, 20044 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:08,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9872 Valid, 20044 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20023 states. [2021-11-23 02:54:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20023 to 20023. [2021-11-23 02:54:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20023 states, 19520 states have (on average 1.2642930327868853) internal successors, (24679), 19723 states have internal predecessors, (24679), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20023 states to 20023 states and 25323 transitions. [2021-11-23 02:54:09,613 INFO L78 Accepts]: Start accepts. Automaton has 20023 states and 25323 transitions. Word has length 167 [2021-11-23 02:54:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:09,616 INFO L470 AbstractCegarLoop]: Abstraction has 20023 states and 25323 transitions. [2021-11-23 02:54:09,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2021-11-23 02:54:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 20023 states and 25323 transitions. [2021-11-23 02:54:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-23 02:54:09,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:09,620 INFO L514 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] [2021-11-23 02:54:09,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:54:09,621 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:09,621 INFO L85 PathProgramCache]: Analyzing trace with hash 48476599, now seen corresponding path program 1 times [2021-11-23 02:54:09,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:09,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981353299] [2021-11-23 02:54:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:09,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:09,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:09,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981353299] [2021-11-23 02:54:09,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981353299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:09,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:09,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:09,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867235997] [2021-11-23 02:54:09,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:09,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:09,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:09,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:09,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:09,847 INFO L87 Difference]: Start difference. First operand 20023 states and 25323 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 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) [2021-11-23 02:54:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:10,500 INFO L93 Difference]: Finished difference Result 20023 states and 25323 transitions. [2021-11-23 02:54:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:10,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 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 169 [2021-11-23 02:54:10,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:10,554 INFO L225 Difference]: With dead ends: 20023 [2021-11-23 02:54:10,554 INFO L226 Difference]: Without dead ends: 20017 [2021-11-23 02:54:10,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:10,566 INFO L933 BasicCegarLoop]: 10071 mSDtfsCounter, 9924 mSDsluCounter, 9936 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9924 SdHoareTripleChecker+Valid, 20007 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:10,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9924 Valid, 20007 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20017 states. [2021-11-23 02:54:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20017 to 20017. [2021-11-23 02:54:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20017 states, 19517 states have (on average 1.2641799456883742) internal successors, (24673), 19717 states have internal predecessors, (24673), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20017 states to 20017 states and 25317 transitions. [2021-11-23 02:54:11,238 INFO L78 Accepts]: Start accepts. Automaton has 20017 states and 25317 transitions. Word has length 169 [2021-11-23 02:54:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:11,238 INFO L470 AbstractCegarLoop]: Abstraction has 20017 states and 25317 transitions. [2021-11-23 02:54:11,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 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) [2021-11-23 02:54:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 20017 states and 25317 transitions. [2021-11-23 02:54:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:54:11,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:11,241 INFO L514 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] [2021-11-23 02:54:11,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:54:11,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:11,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash -658350854, now seen corresponding path program 1 times [2021-11-23 02:54:11,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:11,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860357045] [2021-11-23 02:54:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:11,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:11,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:11,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860357045] [2021-11-23 02:54:11,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860357045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:11,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:11,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:11,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262718452] [2021-11-23 02:54:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:11,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:11,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:11,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:11,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:11,419 INFO L87 Difference]: Start difference. First operand 20017 states and 25317 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 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) [2021-11-23 02:54:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:12,021 INFO L93 Difference]: Finished difference Result 20017 states and 25317 transitions. [2021-11-23 02:54:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:12,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 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 171 [2021-11-23 02:54:12,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:12,077 INFO L225 Difference]: With dead ends: 20017 [2021-11-23 02:54:12,077 INFO L226 Difference]: Without dead ends: 20011 [2021-11-23 02:54:12,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:12,090 INFO L933 BasicCegarLoop]: 10065 mSDtfsCounter, 9916 mSDsluCounter, 9933 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9916 SdHoareTripleChecker+Valid, 19998 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:12,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9916 Valid, 19998 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20011 states. [2021-11-23 02:54:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20011 to 20011. [2021-11-23 02:54:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20011 states, 19514 states have (on average 1.2640668238187969) internal successors, (24667), 19711 states have internal predecessors, (24667), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20011 states to 20011 states and 25311 transitions. [2021-11-23 02:54:12,683 INFO L78 Accepts]: Start accepts. Automaton has 20011 states and 25311 transitions. Word has length 171 [2021-11-23 02:54:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:12,683 INFO L470 AbstractCegarLoop]: Abstraction has 20011 states and 25311 transitions. [2021-11-23 02:54:12,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 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) [2021-11-23 02:54:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 20011 states and 25311 transitions. [2021-11-23 02:54:12,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-23 02:54:12,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:12,687 INFO L514 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] [2021-11-23 02:54:12,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:54:12,688 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:12,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1314700099, now seen corresponding path program 1 times [2021-11-23 02:54:12,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:12,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986601590] [2021-11-23 02:54:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:12,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:12,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986601590] [2021-11-23 02:54:12,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986601590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:12,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:12,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:12,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848764409] [2021-11-23 02:54:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:12,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:12,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:12,855 INFO L87 Difference]: Start difference. First operand 20011 states and 25311 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 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) [2021-11-23 02:54:13,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:13,568 INFO L93 Difference]: Finished difference Result 20011 states and 25311 transitions. [2021-11-23 02:54:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:13,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 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 173 [2021-11-23 02:54:13,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:13,614 INFO L225 Difference]: With dead ends: 20011 [2021-11-23 02:54:13,615 INFO L226 Difference]: Without dead ends: 20005 [2021-11-23 02:54:13,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:13,626 INFO L933 BasicCegarLoop]: 10009 mSDtfsCounter, 9168 mSDsluCounter, 10508 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9168 SdHoareTripleChecker+Valid, 20517 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:13,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9168 Valid, 20517 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:54:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20005 states. [2021-11-23 02:54:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20005 to 20005. [2021-11-23 02:54:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20005 states, 19511 states have (on average 1.2639536671621137) internal successors, (24661), 19705 states have internal predecessors, (24661), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20005 states to 20005 states and 25305 transitions. [2021-11-23 02:54:14,176 INFO L78 Accepts]: Start accepts. Automaton has 20005 states and 25305 transitions. Word has length 173 [2021-11-23 02:54:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:14,177 INFO L470 AbstractCegarLoop]: Abstraction has 20005 states and 25305 transitions. [2021-11-23 02:54:14,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 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) [2021-11-23 02:54:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 20005 states and 25305 transitions. [2021-11-23 02:54:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 02:54:14,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:14,180 INFO L514 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] [2021-11-23 02:54:14,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:54:14,181 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:14,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash -706131712, now seen corresponding path program 1 times [2021-11-23 02:54:14,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:14,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838303765] [2021-11-23 02:54:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:14,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:14,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:14,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838303765] [2021-11-23 02:54:14,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838303765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:14,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:14,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:14,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856104008] [2021-11-23 02:54:14,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:14,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:14,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:14,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:14,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:14,340 INFO L87 Difference]: Start difference. First operand 20005 states and 25305 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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) [2021-11-23 02:54:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:14,867 INFO L93 Difference]: Finished difference Result 20005 states and 25305 transitions. [2021-11-23 02:54:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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 175 [2021-11-23 02:54:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:14,912 INFO L225 Difference]: With dead ends: 20005 [2021-11-23 02:54:14,912 INFO L226 Difference]: Without dead ends: 19999 [2021-11-23 02:54:14,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:14,924 INFO L933 BasicCegarLoop]: 10053 mSDtfsCounter, 9900 mSDsluCounter, 9927 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9900 SdHoareTripleChecker+Valid, 19980 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:14,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9900 Valid, 19980 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:14,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19999 states. [2021-11-23 02:54:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19999 to 19999. [2021-11-23 02:54:15,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19999 states, 19508 states have (on average 1.263840475702276) internal successors, (24655), 19699 states have internal predecessors, (24655), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19999 states to 19999 states and 25299 transitions. [2021-11-23 02:54:15,601 INFO L78 Accepts]: Start accepts. Automaton has 19999 states and 25299 transitions. Word has length 175 [2021-11-23 02:54:15,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:15,601 INFO L470 AbstractCegarLoop]: Abstraction has 19999 states and 25299 transitions. [2021-11-23 02:54:15,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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) [2021-11-23 02:54:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 19999 states and 25299 transitions. [2021-11-23 02:54:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 02:54:15,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:15,606 INFO L514 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] [2021-11-23 02:54:15,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:54:15,606 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:15,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:15,607 INFO L85 PathProgramCache]: Analyzing trace with hash 12536259, now seen corresponding path program 1 times [2021-11-23 02:54:15,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:15,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961143009] [2021-11-23 02:54:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:15,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:15,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:15,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961143009] [2021-11-23 02:54:15,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961143009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:15,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:15,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:15,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030117161] [2021-11-23 02:54:15,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:15,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:15,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:15,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:15,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:15,772 INFO L87 Difference]: Start difference. First operand 19999 states and 25299 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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) [2021-11-23 02:54:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:16,395 INFO L93 Difference]: Finished difference Result 19999 states and 25299 transitions. [2021-11-23 02:54:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:16,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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 177 [2021-11-23 02:54:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:16,442 INFO L225 Difference]: With dead ends: 19999 [2021-11-23 02:54:16,442 INFO L226 Difference]: Without dead ends: 19993 [2021-11-23 02:54:16,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:16,454 INFO L933 BasicCegarLoop]: 10047 mSDtfsCounter, 9892 mSDsluCounter, 9924 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9892 SdHoareTripleChecker+Valid, 19971 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:16,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9892 Valid, 19971 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:16,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19993 states. [2021-11-23 02:54:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19993 to 19993. [2021-11-23 02:54:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19993 states, 19505 states have (on average 1.2637272494232248) internal successors, (24649), 19693 states have internal predecessors, (24649), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19993 states to 19993 states and 25293 transitions. [2021-11-23 02:54:17,039 INFO L78 Accepts]: Start accepts. Automaton has 19993 states and 25293 transitions. Word has length 177 [2021-11-23 02:54:17,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:17,039 INFO L470 AbstractCegarLoop]: Abstraction has 19993 states and 25293 transitions. [2021-11-23 02:54:17,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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) [2021-11-23 02:54:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19993 states and 25293 transitions. [2021-11-23 02:54:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-23 02:54:17,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:17,044 INFO L514 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] [2021-11-23 02:54:17,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:54:17,044 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -837277946, now seen corresponding path program 1 times [2021-11-23 02:54:17,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:17,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845690789] [2021-11-23 02:54:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:17,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:17,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:17,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845690789] [2021-11-23 02:54:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845690789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:17,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:17,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125346339] [2021-11-23 02:54:17,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:17,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:17,283 INFO L87 Difference]: Start difference. First operand 19993 states and 25293 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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) [2021-11-23 02:54:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:17,822 INFO L93 Difference]: Finished difference Result 19993 states and 25293 transitions. [2021-11-23 02:54:17,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:17,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 179 [2021-11-23 02:54:17,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:17,862 INFO L225 Difference]: With dead ends: 19993 [2021-11-23 02:54:17,863 INFO L226 Difference]: Without dead ends: 19987 [2021-11-23 02:54:17,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:17,874 INFO L933 BasicCegarLoop]: 10041 mSDtfsCounter, 9884 mSDsluCounter, 9921 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9884 SdHoareTripleChecker+Valid, 19962 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:17,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9884 Valid, 19962 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19987 states. [2021-11-23 02:54:18,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19987 to 19987. [2021-11-23 02:54:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19987 states, 19502 states have (on average 1.2636139883088915) internal successors, (24643), 19687 states have internal predecessors, (24643), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19987 states to 19987 states and 25287 transitions. [2021-11-23 02:54:18,635 INFO L78 Accepts]: Start accepts. Automaton has 19987 states and 25287 transitions. Word has length 179 [2021-11-23 02:54:18,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:18,636 INFO L470 AbstractCegarLoop]: Abstraction has 19987 states and 25287 transitions. [2021-11-23 02:54:18,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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) [2021-11-23 02:54:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 19987 states and 25287 transitions. [2021-11-23 02:54:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 02:54:18,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:18,642 INFO L514 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, 1, 1] [2021-11-23 02:54:18,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:54:18,642 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:18,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1464942391, now seen corresponding path program 1 times [2021-11-23 02:54:18,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:18,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982761208] [2021-11-23 02:54:18,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:18,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:18,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:18,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982761208] [2021-11-23 02:54:18,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982761208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:18,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:18,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:18,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773973467] [2021-11-23 02:54:18,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:18,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:18,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:18,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:18,809 INFO L87 Difference]: Start difference. First operand 19987 states and 25287 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 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) [2021-11-23 02:54:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:19,435 INFO L93 Difference]: Finished difference Result 19987 states and 25287 transitions. [2021-11-23 02:54:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 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 181 [2021-11-23 02:54:19,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:19,478 INFO L225 Difference]: With dead ends: 19987 [2021-11-23 02:54:19,478 INFO L226 Difference]: Without dead ends: 19981 [2021-11-23 02:54:19,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:19,493 INFO L933 BasicCegarLoop]: 10035 mSDtfsCounter, 9876 mSDsluCounter, 9918 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9876 SdHoareTripleChecker+Valid, 19953 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:19,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9876 Valid, 19953 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19981 states. [2021-11-23 02:54:20,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19981 to 19981. [2021-11-23 02:54:20,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19981 states, 19499 states have (on average 1.263500692343197) internal successors, (24637), 19681 states have internal predecessors, (24637), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19981 states to 19981 states and 25281 transitions. [2021-11-23 02:54:20,216 INFO L78 Accepts]: Start accepts. Automaton has 19981 states and 25281 transitions. Word has length 181 [2021-11-23 02:54:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:20,217 INFO L470 AbstractCegarLoop]: Abstraction has 19981 states and 25281 transitions. [2021-11-23 02:54:20,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 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) [2021-11-23 02:54:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19981 states and 25281 transitions. [2021-11-23 02:54:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 02:54:20,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:20,222 INFO L514 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, 1, 1, 1, 1] [2021-11-23 02:54:20,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:54:20,222 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash 939915020, now seen corresponding path program 1 times [2021-11-23 02:54:20,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:20,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071935163] [2021-11-23 02:54:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:20,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:20,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:20,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071935163] [2021-11-23 02:54:20,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071935163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:20,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:20,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:20,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483256740] [2021-11-23 02:54:20,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:20,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:20,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:20,384 INFO L87 Difference]: Start difference. First operand 19981 states and 25281 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-23 02:54:21,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:21,040 INFO L93 Difference]: Finished difference Result 19981 states and 25281 transitions. [2021-11-23 02:54:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:21,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 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 183 [2021-11-23 02:54:21,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:21,074 INFO L225 Difference]: With dead ends: 19981 [2021-11-23 02:54:21,074 INFO L226 Difference]: Without dead ends: 19975 [2021-11-23 02:54:21,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:21,082 INFO L933 BasicCegarLoop]: 10029 mSDtfsCounter, 9868 mSDsluCounter, 9915 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 19944 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:21,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9868 Valid, 19944 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:54:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19975 states. [2021-11-23 02:54:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19975 to 19975. [2021-11-23 02:54:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19975 states, 19496 states have (on average 1.2633873615100533) internal successors, (24631), 19675 states have internal predecessors, (24631), 276 states have call successors, (276), 105 states have call predecessors, (276), 105 states have return successors, (368), 229 states have call predecessors, (368), 276 states have call successors, (368) [2021-11-23 02:54:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19975 states to 19975 states and 25275 transitions. [2021-11-23 02:54:21,699 INFO L78 Accepts]: Start accepts. Automaton has 19975 states and 25275 transitions. Word has length 183 [2021-11-23 02:54:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:21,700 INFO L470 AbstractCegarLoop]: Abstraction has 19975 states and 25275 transitions. [2021-11-23 02:54:21,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-23 02:54:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19975 states and 25275 transitions. [2021-11-23 02:54:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-23 02:54:21,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:21,706 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:54:21,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:54:21,707 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:21,707 INFO L85 PathProgramCache]: Analyzing trace with hash 837740824, now seen corresponding path program 1 times [2021-11-23 02:54:21,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:21,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217449392] [2021-11-23 02:54:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:21,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:54:21,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:21,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217449392] [2021-11-23 02:54:21,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217449392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:21,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:21,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:21,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770915226] [2021-11-23 02:54:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:21,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:54:21,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:54:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:21,799 INFO L87 Difference]: Start difference. First operand 19975 states and 25275 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-11-23 02:54:22,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:22,989 INFO L93 Difference]: Finished difference Result 57923 states and 73464 transitions. [2021-11-23 02:54:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:54:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 186 [2021-11-23 02:54:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:23,078 INFO L225 Difference]: With dead ends: 57923 [2021-11-23 02:54:23,078 INFO L226 Difference]: Without dead ends: 38719 [2021-11-23 02:54:23,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:23,130 INFO L933 BasicCegarLoop]: 19477 mSDtfsCounter, 9490 mSDsluCounter, 9954 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9490 SdHoareTripleChecker+Valid, 29431 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:23,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9490 Valid, 29431 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:54:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38719 states. [2021-11-23 02:54:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38719 to 38520. [2021-11-23 02:54:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38520 states, 37660 states have (on average 1.266064790228359) internal successors, (47680), 37921 states have internal predecessors, (47680), 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) [2021-11-23 02:54:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38520 states to 38520 states and 48968 transitions. [2021-11-23 02:54:24,667 INFO L78 Accepts]: Start accepts. Automaton has 38520 states and 48968 transitions. Word has length 186 [2021-11-23 02:54:24,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:24,668 INFO L470 AbstractCegarLoop]: Abstraction has 38520 states and 48968 transitions. [2021-11-23 02:54:24,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-11-23 02:54:24,668 INFO L276 IsEmpty]: Start isEmpty. Operand 38520 states and 48968 transitions. [2021-11-23 02:54:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-23 02:54:24,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:24,673 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:54:24,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:54:24,674 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting release_extentsErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:24,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:24,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1101421222, now seen corresponding path program 1 times [2021-11-23 02:54:24,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:24,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900882974] [2021-11-23 02:54:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:24,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:54:24,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:24,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900882974] [2021-11-23 02:54:24,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900882974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:24,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:24,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:24,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493883178] [2021-11-23 02:54:24,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:24,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:54:24,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:54:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:24,777 INFO L87 Difference]: Start difference. First operand 38520 states and 48968 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-11-23 02:54:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:27,152 INFO L93 Difference]: Finished difference Result 95009 states and 120842 transitions. [2021-11-23 02:54:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:54:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 186 [2021-11-23 02:54:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:27,265 INFO L225 Difference]: With dead ends: 95009 [2021-11-23 02:54:27,266 INFO L226 Difference]: Without dead ends: 57260 [2021-11-23 02:54:27,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:27,313 INFO L933 BasicCegarLoop]: 19478 mSDtfsCounter, 9446 mSDsluCounter, 9997 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9446 SdHoareTripleChecker+Valid, 29475 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:27,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9446 Valid, 29475 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:54:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57260 states. [2021-11-23 02:54:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57260 to 57094. [2021-11-23 02:54:29,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57094 states, 55853 states have (on average 1.266861225001343) internal successors, (70758), 56196 states have internal predecessors, (70758), 828 states have call successors, (828), 315 states have call predecessors, (828), 315 states have return successors, (1104), 687 states have call predecessors, (1104), 828 states have call successors, (1104) [2021-11-23 02:54:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57094 states to 57094 states and 72690 transitions. [2021-11-23 02:54:29,471 INFO L78 Accepts]: Start accepts. Automaton has 57094 states and 72690 transitions. Word has length 186 [2021-11-23 02:54:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:29,471 INFO L470 AbstractCegarLoop]: Abstraction has 57094 states and 72690 transitions. [2021-11-23 02:54:29,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-11-23 02:54:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 57094 states and 72690 transitions. [2021-11-23 02:54:29,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-23 02:54:29,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:29,475 INFO L514 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, 1, 1, 1, 1, 1, 1] [2021-11-23 02:54:29,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:54:29,476 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:29,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:29,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1315482063, now seen corresponding path program 1 times [2021-11-23 02:54:29,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:29,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650116246] [2021-11-23 02:54:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:29,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:29,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:29,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650116246] [2021-11-23 02:54:29,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650116246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:29,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:29,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:29,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576616005] [2021-11-23 02:54:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:29,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:29,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:29,651 INFO L87 Difference]: Start difference. First operand 57094 states and 72690 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-11-23 02:54:31,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:54:31,935 INFO L93 Difference]: Finished difference Result 57094 states and 72690 transitions. [2021-11-23 02:54:31,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:54:31,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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 185 [2021-11-23 02:54:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:54:32,052 INFO L225 Difference]: With dead ends: 57094 [2021-11-23 02:54:32,053 INFO L226 Difference]: Without dead ends: 57088 [2021-11-23 02:54:32,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:54:32,077 INFO L933 BasicCegarLoop]: 10023 mSDtfsCounter, 9860 mSDsluCounter, 9912 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9860 SdHoareTripleChecker+Valid, 19935 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:54:32,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9860 Valid, 19935 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:54:32,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57088 states. [2021-11-23 02:54:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57088 to 57088. [2021-11-23 02:54:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57088 states, 55850 states have (on average 1.2668218442256043) internal successors, (70752), 56190 states have internal predecessors, (70752), 828 states have call successors, (828), 315 states have call predecessors, (828), 315 states have return successors, (1104), 687 states have call predecessors, (1104), 828 states have call successors, (1104) [2021-11-23 02:54:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57088 states to 57088 states and 72684 transitions. [2021-11-23 02:54:34,284 INFO L78 Accepts]: Start accepts. Automaton has 57088 states and 72684 transitions. Word has length 185 [2021-11-23 02:54:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:54:34,285 INFO L470 AbstractCegarLoop]: Abstraction has 57088 states and 72684 transitions. [2021-11-23 02:54:34,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-11-23 02:54:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 57088 states and 72684 transitions. [2021-11-23 02:54:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-23 02:54:34,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:34,289 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:54:34,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:54:34,289 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-23 02:54:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1458157842, now seen corresponding path program 1 times [2021-11-23 02:54:34,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:54:34,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125249178] [2021-11-23 02:54:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:34,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 02:54:34,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:54:34,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125249178] [2021-11-23 02:54:34,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125249178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:34,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:34,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:34,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371176545] [2021-11-23 02:54:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:34,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:54:34,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:54:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:54:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:54:34,441 INFO L87 Difference]: Start difference. First operand 57088 states and 72684 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 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)