./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 5f08f0f0 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-wip.dd.seqcomp-5f08f0f [2021-11-05 20:55:23,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:55:23,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:55:23,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:55:23,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:55:23,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:55:23,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:55:24,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:55:24,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:55:24,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:55:24,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:55:24,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:55:24,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:55:24,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:55:24,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:55:24,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:55:24,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:55:24,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:55:24,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:55:24,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:55:24,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:55:24,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:55:24,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:55:24,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:55:24,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:55:24,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:55:24,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:55:24,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:55:24,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:55:24,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:55:24,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:55:24,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:55:24,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:55:24,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:55:24,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:55:24,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:55:24,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:55:24,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:55:24,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:55:24,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:55:24,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:55:24,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:55:24,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:55:24,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:55:24,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:55:24,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:55:24,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:55:24,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:55:24,089 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:55:24,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:55:24,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:55:24,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:55:24,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:55:24,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:55:24,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:55:24,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:55:24,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:55:24,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:55:24,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:55:24,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:55:24,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:55:24,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2021-11-05 20:55:24,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:55:24,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:55:24,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:55:24,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:55:24,480 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:55:24,481 INFO L432 ainManager$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 [2021-11-05 20:55:24,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc4e01c6/f46b1ce0688144869a0ec36b5a912c36/FLAG74746b1b5 [2021-11-05 20:55:25,372 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:55:25,373 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 [2021-11-05 20:55:25,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc4e01c6/f46b1ce0688144869a0ec36b5a912c36/FLAG74746b1b5 [2021-11-05 20:55:25,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc4e01c6/f46b1ce0688144869a0ec36b5a912c36 [2021-11-05 20:55:25,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:55:25,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:55:25,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:55:25,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:55:25,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:55:25,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:55:25" (1/1) ... [2021-11-05 20:55:25,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c77083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:25, skipping insertion in model container [2021-11-05 20:55:25,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:55:25" (1/1) ... [2021-11-05 20:55:25,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:55:25,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:55:30,504 WARN L228 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] [2021-11-05 20:55:30,507 WARN L228 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] [2021-11-05 20:55:30,508 WARN L228 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] [2021-11-05 20:55:30,508 WARN L228 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] [2021-11-05 20:55:30,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:55:30,552 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:55:30,961 WARN L228 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] [2021-11-05 20:55:30,962 WARN L228 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] [2021-11-05 20:55:30,962 WARN L228 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] [2021-11-05 20:55:30,962 WARN L228 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] [2021-11-05 20:55:30,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:55:31,236 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:55:31,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31 WrapperNode [2021-11-05 20:55:31,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:55:31,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:55:31,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:55:31,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:55:31,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:31,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:55:32,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:55:32,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:55:32,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:55:32,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:32,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:32,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:32,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:33,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:33,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:33,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:33,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:55:33,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:55:33,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:55:33,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:55:33,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (1/1) ... [2021-11-05 20:55:33,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:55:33,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:55:33,881 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) [2021-11-05 20:55:33,935 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 [2021-11-05 20:55:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2021-11-05 20:55:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-05 20:55:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:55:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2021-11-05 20:55:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2021-11-05 20:55:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:55:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:55:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:55:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-05 20:55:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-05 20:55:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2021-11-05 20:55:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2021-11-05 20:55:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:55:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:55:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2021-11-05 20:55:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2021-11-05 20:55:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:55:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 20:55:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2021-11-05 20:55:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2021-11-05 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:55:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-05 20:55:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-05 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2021-11-05 20:55:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2021-11-05 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2021-11-05 20:55:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2021-11-05 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2021-11-05 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2021-11-05 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2021-11-05 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2021-11-05 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2021-11-05 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2021-11-05 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2021-11-05 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2021-11-05 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2021-11-05 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2021-11-05 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2021-11-05 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2021-11-05 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2021-11-05 20:55:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2021-11-05 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2021-11-05 20:55:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2021-11-05 20:55:58,434 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:55:58,434 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:55:58,434 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:55:58,434 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:55:58,436 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:55:58,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:55:58,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:55:58,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:55:58,480 INFO L299 CfgBuilder]: Removed 8152 assume(true) statements. [2021-11-05 20:55:58,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:55:58 BoogieIcfgContainer [2021-11-05 20:55:58,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:55:58,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:55:58,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:55:58,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:55:58,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:55:25" (1/3) ... [2021-11-05 20:55:58,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2405dc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:55:58, skipping insertion in model container [2021-11-05 20:55:58,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:55:31" (2/3) ... [2021-11-05 20:55:58,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2405dc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:55:58, skipping insertion in model container [2021-11-05 20:55:58,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:55:58" (3/3) ... [2021-11-05 20:55:58,497 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2021-11-05 20:55:58,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:55:58,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 137 error locations. [2021-11-05 20:55:58,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:55:58,573 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 [2021-11-05 20:55:58,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2021-11-05 20:55:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 8724 states, 8489 states have (on average 1.423018023324302) internal successors, (12080), 8643 states have internal predecessors, (12080), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (79), 68 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-05 20:55:58,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 20:55:58,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:58,719 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] [2021-11-05 20:55:58,719 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-05 20:55:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:58,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1399204513, now seen corresponding path program 1 times [2021-11-05 20:55:58,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:58,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984105972] [2021-11-05 20:55:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:58,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:55:59,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:59,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984105972] [2021-11-05 20:55:59,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984105972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:59,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:59,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:59,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061939984] [2021-11-05 20:55:59,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:59,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:55:59,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:55:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:55:59,648 INFO L87 Difference]: Start difference. First operand has 8724 states, 8489 states have (on average 1.423018023324302) internal successors, (12080), 8643 states have internal predecessors, (12080), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (79), 68 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-05 20:56:01,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:56:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:02,557 INFO L93 Difference]: Finished difference Result 23566 states and 32785 transitions. [2021-11-05 20:56:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:56:02,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 20:56:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:02,654 INFO L225 Difference]: With dead ends: 23566 [2021-11-05 20:56:02,655 INFO L226 Difference]: Without dead ends: 14493 [2021-11-05 20:56:02,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:02,703 INFO L933 BasicCegarLoop]: 10329 mSDtfsCounter, 9497 mSDsluCounter, 10173 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2121.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9497 SdHoareTripleChecker+Valid, 20502 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.95ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2326.82ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:02,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9497 Valid, 20502 Invalid, 54 Unknown, 0 Unchecked, 54.95ms Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2326.82ms Time] [2021-11-05 20:56:02,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14493 states. [2021-11-05 20:56:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14493 to 14327. [2021-11-05 20:56:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14327 states, 13994 states have (on average 1.2807631842218092) internal successors, (17923), 14166 states have internal predecessors, (17923), 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) [2021-11-05 20:56:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14327 states to 14327 states and 18239 transitions. [2021-11-05 20:56:03,239 INFO L78 Accepts]: Start accepts. Automaton has 14327 states and 18239 transitions. Word has length 125 [2021-11-05 20:56:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:03,241 INFO L470 AbstractCegarLoop]: Abstraction has 14327 states and 18239 transitions. [2021-11-05 20:56:03,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-05 20:56:03,248 INFO L276 IsEmpty]: Start isEmpty. Operand 14327 states and 18239 transitions. [2021-11-05 20:56:03,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 20:56:03,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:03,256 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] [2021-11-05 20:56:03,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:56:03,257 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)] === [2021-11-05 20:56:03,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1209282611, now seen corresponding path program 1 times [2021-11-05 20:56:03,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:03,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870411716] [2021-11-05 20:56:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:03,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:56:03,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:03,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870411716] [2021-11-05 20:56:03,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870411716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:03,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:03,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:03,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149099136] [2021-11-05 20:56:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:03,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:56:03,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:56:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:03,591 INFO L87 Difference]: Start difference. First operand 14327 states and 18239 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:56:05,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:56:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:06,678 INFO L93 Difference]: Finished difference Result 30149 states and 38340 transitions. [2021-11-05 20:56:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:56:06,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 20:56:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:06,762 INFO L225 Difference]: With dead ends: 30149 [2021-11-05 20:56:06,762 INFO L226 Difference]: Without dead ends: 16098 [2021-11-05 20:56:06,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:06,792 INFO L933 BasicCegarLoop]: 9526 mSDtfsCounter, 5637 mSDsluCounter, 9417 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2130.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 18943 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.70ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2296.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:06,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5637 Valid, 18943 Invalid, 71 Unknown, 0 Unchecked, 37.70ms Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 2296.94ms Time] [2021-11-05 20:56:06,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16098 states. [2021-11-05 20:56:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16098 to 15748. [2021-11-05 20:56:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15748 states, 15367 states have (on average 1.283920088501334) internal successors, (19730), 15549 states have internal predecessors, (19730), 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) [2021-11-05 20:56:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15748 states to 15748 states and 20104 transitions. [2021-11-05 20:56:07,230 INFO L78 Accepts]: Start accepts. Automaton has 15748 states and 20104 transitions. Word has length 134 [2021-11-05 20:56:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:07,232 INFO L470 AbstractCegarLoop]: Abstraction has 15748 states and 20104 transitions. [2021-11-05 20:56:07,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:56:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 15748 states and 20104 transitions. [2021-11-05 20:56:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-05 20:56:07,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:07,237 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] [2021-11-05 20:56:07,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:56:07,238 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)] === [2021-11-05 20:56:07,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash 769910935, now seen corresponding path program 1 times [2021-11-05 20:56:07,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:07,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153798779] [2021-11-05 20:56:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:07,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:56:07,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:07,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153798779] [2021-11-05 20:56:07,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153798779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:07,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:07,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:07,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337807093] [2021-11-05 20:56:07,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:07,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:56:07,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:07,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:56:07,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:07,531 INFO L87 Difference]: Start difference. First operand 15748 states and 20104 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) [2021-11-05 20:56:09,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:56:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:10,236 INFO L93 Difference]: Finished difference Result 32562 states and 41485 transitions. [2021-11-05 20:56:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:56:10,237 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 [2021-11-05 20:56:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:10,293 INFO L225 Difference]: With dead ends: 32562 [2021-11-05 20:56:10,294 INFO L226 Difference]: Without dead ends: 17090 [2021-11-05 20:56:10,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:10,344 INFO L933 BasicCegarLoop]: 14168 mSDtfsCounter, 5590 mSDsluCounter, 9418 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2147.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 23586 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2320.56ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:10,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5590 Valid, 23586 Invalid, 71 Unknown, 0 Unchecked, 35.24ms Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 2320.56ms Time] [2021-11-05 20:56:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17090 states. [2021-11-05 20:56:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17090 to 16738. [2021-11-05 20:56:10,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 16357 states have (on average 1.2840374151739316) internal successors, (21003), 16539 states have internal predecessors, (21003), 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) [2021-11-05 20:56:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 21377 transitions. [2021-11-05 20:56:10,782 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 21377 transitions. Word has length 135 [2021-11-05 20:56:10,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:10,784 INFO L470 AbstractCegarLoop]: Abstraction has 16738 states and 21377 transitions. [2021-11-05 20:56:10,784 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) [2021-11-05 20:56:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 21377 transitions. [2021-11-05 20:56:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-05 20:56:10,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:10,788 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:56:10,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:56:10,788 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [bl_find_get_extentErr0ASSERT_VIOLATIONERROR_FUNCTION, bl_find_get_extentErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_pnfs_block_layoutupdateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 134 more)] === [2021-11-05 20:56:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 384070110, now seen corresponding path program 1 times [2021-11-05 20:56:10,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:10,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722259790] [2021-11-05 20:56:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:10,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:56:11,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:11,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722259790] [2021-11-05 20:56:11,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722259790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:11,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:11,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:11,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867232385] [2021-11-05 20:56:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:11,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:56:11,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:56:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:11,061 INFO L87 Difference]: Start difference. First operand 16738 states and 21377 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-11-05 20:56:13,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:56:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:13,833 INFO L93 Difference]: Finished difference Result 48266 states and 61824 transitions. [2021-11-05 20:56:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:56:13,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-05 20:56:13,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:13,939 INFO L225 Difference]: With dead ends: 48266 [2021-11-05 20:56:13,940 INFO L226 Difference]: Without dead ends: 32257 [2021-11-05 20:56:14,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:56:14,002 INFO L933 BasicCegarLoop]: 18310 mSDtfsCounter, 8911 mSDsluCounter, 9372 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2100.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8911 SdHoareTripleChecker+Valid, 27682 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.08ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2231.74ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:14,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8911 Valid, 27682 Invalid, 52 Unknown, 0 Unchecked, 41.08ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 2231.74ms Time] [2021-11-05 20:56:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32257 states. [2021-11-05 20:56:14,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32257 to 32058. [2021-11-05 20:56:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32058 states, 31433 states have (on average 1.2864187319059588) internal successors, (40436), 31661 states have internal predecessors, (40436), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-05 20:56:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32058 states to 32058 states and 41184 transitions. [2021-11-05 20:56:15,182 INFO L78 Accepts]: Start accepts. Automaton has 32058 states and 41184 transitions. Word has length 157 [2021-11-05 20:56:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:15,182 INFO L470 AbstractCegarLoop]: Abstraction has 32058 states and 41184 transitions. [2021-11-05 20:56:15,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-11-05 20:56:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 32058 states and 41184 transitions. [2021-11-05 20:56:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-05 20:56:15,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:15,188 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] [2021-11-05 20:56:15,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:56:15,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-05 20:56:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1353649086, now seen corresponding path program 1 times [2021-11-05 20:56:15,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:15,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561305347] [2021-11-05 20:56:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:15,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:15,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:15,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561305347] [2021-11-05 20:56:15,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561305347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:15,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:15,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:15,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44856077] [2021-11-05 20:56:15,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:15,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:15,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:15,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:15,621 INFO L87 Difference]: Start difference. First operand 32058 states and 41184 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-05 20:56:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:16,370 INFO L93 Difference]: Finished difference Result 32058 states and 41184 transitions. [2021-11-05 20:56:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-05 20:56:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:16,469 INFO L225 Difference]: With dead ends: 32058 [2021-11-05 20:56:16,470 INFO L226 Difference]: Without dead ends: 32052 [2021-11-05 20:56:16,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:16,494 INFO L933 BasicCegarLoop]: 9467 mSDtfsCounter, 9335 mSDsluCounter, 9317 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9335 SdHoareTripleChecker+Valid, 18784 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.29ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.15ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:16,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9335 Valid, 18784 Invalid, 160 Unknown, 0 Unchecked, 37.29ms Time], IncrementalHoareTripleChecker [52 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 180.15ms Time] [2021-11-05 20:56:16,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32052 states. [2021-11-05 20:56:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32052 to 32052. [2021-11-05 20:56:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32052 states, 31430 states have (on average 1.2863506204263442) internal successors, (40430), 31655 states have internal predecessors, (40430), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-05 20:56:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32052 states to 32052 states and 41178 transitions. [2021-11-05 20:56:17,349 INFO L78 Accepts]: Start accepts. Automaton has 32052 states and 41178 transitions. Word has length 157 [2021-11-05 20:56:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:17,350 INFO L470 AbstractCegarLoop]: Abstraction has 32052 states and 41178 transitions. [2021-11-05 20:56:17,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-05 20:56:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 32052 states and 41178 transitions. [2021-11-05 20:56:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-05 20:56:17,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:17,354 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] [2021-11-05 20:56:17,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:56:17,354 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-05 20:56:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash 518591365, now seen corresponding path program 1 times [2021-11-05 20:56:17,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:17,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065343032] [2021-11-05 20:56:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:17,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:17,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065343032] [2021-11-05 20:56:17,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065343032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:17,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:17,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:17,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494149294] [2021-11-05 20:56:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:17,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:17,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:17,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:17,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:17,733 INFO L87 Difference]: Start difference. First operand 32052 states and 41178 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) [2021-11-05 20:56:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:18,414 INFO L93 Difference]: Finished difference Result 32052 states and 41178 transitions. [2021-11-05 20:56:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:18,417 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 [2021-11-05 20:56:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:18,518 INFO L225 Difference]: With dead ends: 32052 [2021-11-05 20:56:18,518 INFO L226 Difference]: Without dead ends: 32046 [2021-11-05 20:56:18,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.19ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:18,542 INFO L933 BasicCegarLoop]: 9461 mSDtfsCounter, 9324 mSDsluCounter, 9314 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9324 SdHoareTripleChecker+Valid, 18775 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.48ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.52ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:18,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9324 Valid, 18775 Invalid, 160 Unknown, 0 Unchecked, 31.48ms Time], IncrementalHoareTripleChecker [55 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 164.52ms Time] [2021-11-05 20:56:18,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2021-11-05 20:56:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 32046. [2021-11-05 20:56:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32046 states, 31427 states have (on average 1.286282495942979) internal successors, (40424), 31649 states have internal predecessors, (40424), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-05 20:56:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32046 states to 32046 states and 41172 transitions. [2021-11-05 20:56:19,606 INFO L78 Accepts]: Start accepts. Automaton has 32046 states and 41172 transitions. Word has length 159 [2021-11-05 20:56:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:19,607 INFO L470 AbstractCegarLoop]: Abstraction has 32046 states and 41172 transitions. [2021-11-05 20:56:19,607 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) [2021-11-05 20:56:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 32046 states and 41172 transitions. [2021-11-05 20:56:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-05 20:56:19,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:19,611 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] [2021-11-05 20:56:19,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:56:19,612 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-05 20:56:19,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:19,612 INFO L85 PathProgramCache]: Analyzing trace with hash 150368072, now seen corresponding path program 1 times [2021-11-05 20:56:19,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:19,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103584856] [2021-11-05 20:56:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:19,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:19,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:19,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103584856] [2021-11-05 20:56:19,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103584856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:19,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:19,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:19,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832408582] [2021-11-05 20:56:19,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:19,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:19,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:19,957 INFO L87 Difference]: Start difference. First operand 32046 states and 41172 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) [2021-11-05 20:56:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:20,915 INFO L93 Difference]: Finished difference Result 32046 states and 41172 transitions. [2021-11-05 20:56:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:20,916 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 [2021-11-05 20:56:20,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:21,013 INFO L225 Difference]: With dead ends: 32046 [2021-11-05 20:56:21,013 INFO L226 Difference]: Without dead ends: 32040 [2021-11-05 20:56:21,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:21,036 INFO L933 BasicCegarLoop]: 9455 mSDtfsCounter, 9316 mSDsluCounter, 9311 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 130.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9316 SdHoareTripleChecker+Valid, 18766 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.10ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 157.78ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:21,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9316 Valid, 18766 Invalid, 157 Unknown, 0 Unchecked, 31.10ms Time], IncrementalHoareTripleChecker [55 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 157.78ms Time] [2021-11-05 20:56:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32040 states. [2021-11-05 20:56:22,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32040 to 32040. [2021-11-05 20:56:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32040 states, 31424 states have (on average 1.2862143584521384) internal successors, (40418), 31643 states have internal predecessors, (40418), 374 states have call successors, (374), 114 states have call predecessors, (374), 114 states have return successors, (374), 320 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-05 20:56:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32040 states to 32040 states and 41166 transitions. [2021-11-05 20:56:22,371 INFO L78 Accepts]: Start accepts. Automaton has 32040 states and 41166 transitions. Word has length 161 [2021-11-05 20:56:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:22,372 INFO L470 AbstractCegarLoop]: Abstraction has 32040 states and 41166 transitions. [2021-11-05 20:56:22,372 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) [2021-11-05 20:56:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 32040 states and 41166 transitions. [2021-11-05 20:56:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-05 20:56:22,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:22,376 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] [2021-11-05 20:56:22,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:56:22,378 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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)] === [2021-11-05 20:56:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:22,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1524897909, now seen corresponding path program 1 times [2021-11-05 20:56:22,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:22,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684457228] [2021-11-05 20:56:22,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:22,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:22,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:22,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684457228] [2021-11-05 20:56:22,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684457228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:22,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:22,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:22,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074689611] [2021-11-05 20:56:22,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:22,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:22,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:22,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:22,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:22,668 INFO L87 Difference]: Start difference. First operand 32040 states and 41166 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) [2021-11-05 20:56:25,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:56:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:25,793 INFO L93 Difference]: Finished difference Result 35766 states and 46289 transitions. [2021-11-05 20:56:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:25,793 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 [2021-11-05 20:56:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:25,913 INFO L225 Difference]: With dead ends: 35766 [2021-11-05 20:56:25,914 INFO L226 Difference]: Without dead ends: 35760 [2021-11-05 20:56:25,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:25,937 INFO L933 BasicCegarLoop]: 10314 mSDtfsCounter, 8810 mSDsluCounter, 11615 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2236.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8810 SdHoareTripleChecker+Valid, 21929 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.96ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2302.08ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:25,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8810 Valid, 21929 Invalid, 269 Unknown, 0 Unchecked, 31.96ms Time], IncrementalHoareTripleChecker [67 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 2302.08ms Time] [2021-11-05 20:56:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35760 states. [2021-11-05 20:56:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35760 to 35406. [2021-11-05 20:56:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35406 states, 34519 states have (on average 1.2910570989889627) internal successors, (44566), 34807 states have internal predecessors, (44566), 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) [2021-11-05 20:56:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35406 states to 35406 states and 45854 transitions. [2021-11-05 20:56:27,306 INFO L78 Accepts]: Start accepts. Automaton has 35406 states and 45854 transitions. Word has length 163 [2021-11-05 20:56:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:27,307 INFO L470 AbstractCegarLoop]: Abstraction has 35406 states and 45854 transitions. [2021-11-05 20:56:27,307 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) [2021-11-05 20:56:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 35406 states and 45854 transitions. [2021-11-05 20:56:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-05 20:56:27,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:27,311 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] [2021-11-05 20:56:27,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:56:27,312 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-11-05 20:56:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash -842769330, now seen corresponding path program 1 times [2021-11-05 20:56:27,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:27,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428319215] [2021-11-05 20:56:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:27,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:27,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:27,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428319215] [2021-11-05 20:56:27,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428319215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:27,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:27,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:27,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446735458] [2021-11-05 20:56:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:27,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:27,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:27,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:27,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:27,616 INFO L87 Difference]: Start difference. First operand 35406 states and 45854 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) [2021-11-05 20:56:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:28,711 INFO L93 Difference]: Finished difference Result 35406 states and 45854 transitions. [2021-11-05 20:56:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:28,712 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 [2021-11-05 20:56:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:28,812 INFO L225 Difference]: With dead ends: 35406 [2021-11-05 20:56:28,812 INFO L226 Difference]: Without dead ends: 35400 [2021-11-05 20:56:28,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:28,838 INFO L933 BasicCegarLoop]: 9435 mSDtfsCounter, 9248 mSDsluCounter, 9333 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9248 SdHoareTripleChecker+Valid, 18768 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.26ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:28,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9248 Valid, 18768 Invalid, 183 Unknown, 0 Unchecked, 26.26ms Time], IncrementalHoareTripleChecker [59 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 206.94ms Time] [2021-11-05 20:56:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35400 states. [2021-11-05 20:56:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35400 to 35400. [2021-11-05 20:56:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35400 states, 34516 states have (on average 1.290995480356936) internal successors, (44560), 34801 states have internal predecessors, (44560), 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) [2021-11-05 20:56:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35400 states to 35400 states and 45848 transitions. [2021-11-05 20:56:30,174 INFO L78 Accepts]: Start accepts. Automaton has 35400 states and 45848 transitions. Word has length 165 [2021-11-05 20:56:30,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:30,175 INFO L470 AbstractCegarLoop]: Abstraction has 35400 states and 45848 transitions. [2021-11-05 20:56:30,175 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) [2021-11-05 20:56:30,175 INFO L276 IsEmpty]: Start isEmpty. Operand 35400 states and 45848 transitions. [2021-11-05 20:56:30,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-05 20:56:30,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:30,180 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] [2021-11-05 20:56:30,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:56:30,181 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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)] === [2021-11-05 20:56:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:30,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1847766417, now seen corresponding path program 1 times [2021-11-05 20:56:30,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:30,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820412324] [2021-11-05 20:56:30,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:30,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:30,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:30,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820412324] [2021-11-05 20:56:30,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820412324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:30,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:30,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:30,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144101007] [2021-11-05 20:56:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:30,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:30,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:30,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:30,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:30,481 INFO L87 Difference]: Start difference. First operand 35400 states and 45848 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) [2021-11-05 20:56:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:31,648 INFO L93 Difference]: Finished difference Result 35400 states and 45848 transitions. [2021-11-05 20:56:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:31,648 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 [2021-11-05 20:56:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:31,762 INFO L225 Difference]: With dead ends: 35400 [2021-11-05 20:56:31,762 INFO L226 Difference]: Without dead ends: 35394 [2021-11-05 20:56:31,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:31,782 INFO L933 BasicCegarLoop]: 9437 mSDtfsCounter, 9292 mSDsluCounter, 9302 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9292 SdHoareTripleChecker+Valid, 18739 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.05ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 169.92ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:31,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9292 Valid, 18739 Invalid, 148 Unknown, 0 Unchecked, 19.05ms Time], IncrementalHoareTripleChecker [55 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 169.92ms Time] [2021-11-05 20:56:31,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35394 states. [2021-11-05 20:56:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35394 to 35394. [2021-11-05 20:56:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35394 states, 34513 states have (on average 1.290933851012662) internal successors, (44554), 34795 states have internal predecessors, (44554), 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) [2021-11-05 20:56:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35394 states to 35394 states and 45842 transitions. [2021-11-05 20:56:32,918 INFO L78 Accepts]: Start accepts. Automaton has 35394 states and 45842 transitions. Word has length 167 [2021-11-05 20:56:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:32,918 INFO L470 AbstractCegarLoop]: Abstraction has 35394 states and 45842 transitions. [2021-11-05 20:56:32,918 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) [2021-11-05 20:56:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 35394 states and 45842 transitions. [2021-11-05 20:56:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-05 20:56:32,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:32,923 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] [2021-11-05 20:56:32,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:56:32,924 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-11-05 20:56:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1882307412, now seen corresponding path program 1 times [2021-11-05 20:56:32,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:32,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925799704] [2021-11-05 20:56:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:32,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:33,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:33,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925799704] [2021-11-05 20:56:33,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925799704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:33,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:33,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:33,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151332844] [2021-11-05 20:56:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:33,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:33,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:33,338 INFO L87 Difference]: Start difference. First operand 35394 states and 45842 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) [2021-11-05 20:56:34,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:34,253 INFO L93 Difference]: Finished difference Result 35394 states and 45842 transitions. [2021-11-05 20:56:34,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:34,253 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 [2021-11-05 20:56:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:34,343 INFO L225 Difference]: With dead ends: 35394 [2021-11-05 20:56:34,343 INFO L226 Difference]: Without dead ends: 35388 [2021-11-05 20:56:34,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.50ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:34,366 INFO L933 BasicCegarLoop]: 9431 mSDtfsCounter, 9284 mSDsluCounter, 9299 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9284 SdHoareTripleChecker+Valid, 18730 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.25ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.08ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:34,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9284 Valid, 18730 Invalid, 145 Unknown, 0 Unchecked, 18.25ms Time], IncrementalHoareTripleChecker [55 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 139.08ms Time] [2021-11-05 20:56:34,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35388 states. [2021-11-05 20:56:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35388 to 35388. [2021-11-05 20:56:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35388 states, 34510 states have (on average 1.2908722109533468) internal successors, (44548), 34789 states have internal predecessors, (44548), 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) [2021-11-05 20:56:35,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35388 states to 35388 states and 45836 transitions. [2021-11-05 20:56:35,573 INFO L78 Accepts]: Start accepts. Automaton has 35388 states and 45836 transitions. Word has length 169 [2021-11-05 20:56:35,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:35,573 INFO L470 AbstractCegarLoop]: Abstraction has 35388 states and 45836 transitions. [2021-11-05 20:56:35,573 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) [2021-11-05 20:56:35,573 INFO L276 IsEmpty]: Start isEmpty. Operand 35388 states and 45836 transitions. [2021-11-05 20:56:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-05 20:56:35,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:35,578 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] [2021-11-05 20:56:35,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:56:35,579 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-11-05 20:56:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash 716465559, now seen corresponding path program 1 times [2021-11-05 20:56:35,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:35,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119442697] [2021-11-05 20:56:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:35,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:36,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:36,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119442697] [2021-11-05 20:56:36,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119442697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:36,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:36,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:36,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568689268] [2021-11-05 20:56:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:36,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:36,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:36,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:36,010 INFO L87 Difference]: Start difference. First operand 35388 states and 45836 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) [2021-11-05 20:56:37,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:37,165 INFO L93 Difference]: Finished difference Result 35388 states and 45836 transitions. [2021-11-05 20:56:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:37,166 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 [2021-11-05 20:56:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:37,263 INFO L225 Difference]: With dead ends: 35388 [2021-11-05 20:56:37,264 INFO L226 Difference]: Without dead ends: 35382 [2021-11-05 20:56:37,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:37,289 INFO L933 BasicCegarLoop]: 9375 mSDtfsCounter, 8588 mSDsluCounter, 9822 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 312.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8588 SdHoareTripleChecker+Valid, 19197 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.14ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 369.10ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:37,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8588 Valid, 19197 Invalid, 354 Unknown, 0 Unchecked, 19.14ms Time], IncrementalHoareTripleChecker [84 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 369.10ms Time] [2021-11-05 20:56:37,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35382 states. [2021-11-05 20:56:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35382 to 35382. [2021-11-05 20:56:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35382 states, 34507 states have (on average 1.290810560176196) internal successors, (44542), 34783 states have internal predecessors, (44542), 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) [2021-11-05 20:56:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35382 states to 35382 states and 45830 transitions. [2021-11-05 20:56:38,516 INFO L78 Accepts]: Start accepts. Automaton has 35382 states and 45830 transitions. Word has length 171 [2021-11-05 20:56:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:38,517 INFO L470 AbstractCegarLoop]: Abstraction has 35382 states and 45830 transitions. [2021-11-05 20:56:38,517 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) [2021-11-05 20:56:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 35382 states and 45830 transitions. [2021-11-05 20:56:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-05 20:56:38,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:38,522 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] [2021-11-05 20:56:38,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:56:38,523 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-05 20:56:38,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:38,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1328909402, now seen corresponding path program 1 times [2021-11-05 20:56:38,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:38,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542409406] [2021-11-05 20:56:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:38,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:38,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:38,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542409406] [2021-11-05 20:56:38,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542409406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:38,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:38,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:38,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536607521] [2021-11-05 20:56:38,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:38,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:38,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:38,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:38,911 INFO L87 Difference]: Start difference. First operand 35382 states and 45830 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) [2021-11-05 20:56:39,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:39,991 INFO L93 Difference]: Finished difference Result 35382 states and 45830 transitions. [2021-11-05 20:56:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:39,992 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 [2021-11-05 20:56:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:40,063 INFO L225 Difference]: With dead ends: 35382 [2021-11-05 20:56:40,064 INFO L226 Difference]: Without dead ends: 35376 [2021-11-05 20:56:40,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:40,080 INFO L933 BasicCegarLoop]: 9419 mSDtfsCounter, 9268 mSDsluCounter, 9293 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9268 SdHoareTripleChecker+Valid, 18712 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.53ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.89ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:40,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9268 Valid, 18712 Invalid, 139 Unknown, 0 Unchecked, 19.53ms Time], IncrementalHoareTripleChecker [55 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 146.89ms Time] [2021-11-05 20:56:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35376 states. [2021-11-05 20:56:41,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35376 to 35376. [2021-11-05 20:56:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35376 states, 34504 states have (on average 1.2907488986784141) internal successors, (44536), 34777 states have internal predecessors, (44536), 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) [2021-11-05 20:56:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35376 states to 35376 states and 45824 transitions. [2021-11-05 20:56:41,147 INFO L78 Accepts]: Start accepts. Automaton has 35376 states and 45824 transitions. Word has length 173 [2021-11-05 20:56:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:41,147 INFO L470 AbstractCegarLoop]: Abstraction has 35376 states and 45824 transitions. [2021-11-05 20:56:41,148 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) [2021-11-05 20:56:41,148 INFO L276 IsEmpty]: Start isEmpty. Operand 35376 states and 45824 transitions. [2021-11-05 20:56:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-05 20:56:41,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:41,152 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] [2021-11-05 20:56:41,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:56:41,152 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-11-05 20:56:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1476923293, now seen corresponding path program 1 times [2021-11-05 20:56:41,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:41,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163495880] [2021-11-05 20:56:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:41,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:41,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:41,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163495880] [2021-11-05 20:56:41,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163495880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:41,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:41,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:41,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532125366] [2021-11-05 20:56:41,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:41,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:41,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:41,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:41,429 INFO L87 Difference]: Start difference. First operand 35376 states and 45824 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) [2021-11-05 20:56:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:42,789 INFO L93 Difference]: Finished difference Result 35376 states and 45824 transitions. [2021-11-05 20:56:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:42,790 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 [2021-11-05 20:56:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:42,860 INFO L225 Difference]: With dead ends: 35376 [2021-11-05 20:56:42,860 INFO L226 Difference]: Without dead ends: 35370 [2021-11-05 20:56:42,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:42,876 INFO L933 BasicCegarLoop]: 9413 mSDtfsCounter, 9260 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9260 SdHoareTripleChecker+Valid, 18703 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.22ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.07ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:42,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9260 Valid, 18703 Invalid, 136 Unknown, 0 Unchecked, 19.22ms Time], IncrementalHoareTripleChecker [55 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 117.07ms Time] [2021-11-05 20:56:42,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35370 states. [2021-11-05 20:56:43,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35370 to 35370. [2021-11-05 20:56:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35370 states, 34501 states have (on average 1.2906872264572042) internal successors, (44530), 34771 states have internal predecessors, (44530), 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) [2021-11-05 20:56:44,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35370 states to 35370 states and 45818 transitions. [2021-11-05 20:56:44,032 INFO L78 Accepts]: Start accepts. Automaton has 35370 states and 45818 transitions. Word has length 175 [2021-11-05 20:56:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:56:44,032 INFO L470 AbstractCegarLoop]: Abstraction has 35370 states and 45818 transitions. [2021-11-05 20:56:44,032 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) [2021-11-05 20:56:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 35370 states and 45818 transitions. [2021-11-05 20:56:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-05 20:56:44,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:56:44,037 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] [2021-11-05 20:56:44,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:56:44,037 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-11-05 20:56:44,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:56:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1984352096, now seen corresponding path program 1 times [2021-11-05 20:56:44,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:56:44,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982519820] [2021-11-05 20:56:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:56:44,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:56:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:56:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:56:44,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:56:44,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982519820] [2021-11-05 20:56:44,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982519820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:56:44,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:56:44,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:56:44,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673133527] [2021-11-05 20:56:44,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:56:44,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:56:44,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:56:44,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:56:44,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:56:44,337 INFO L87 Difference]: Start difference. First operand 35370 states and 45818 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) [2021-11-05 20:56:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:56:45,674 INFO L93 Difference]: Finished difference Result 35370 states and 45818 transitions. [2021-11-05 20:56:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:56:45,675 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 [2021-11-05 20:56:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:56:45,744 INFO L225 Difference]: With dead ends: 35370 [2021-11-05 20:56:45,744 INFO L226 Difference]: Without dead ends: 35364 [2021-11-05 20:56:45,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:56:45,762 INFO L933 BasicCegarLoop]: 9407 mSDtfsCounter, 9252 mSDsluCounter, 9287 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9252 SdHoareTripleChecker+Valid, 18694 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.50ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.11ms IncrementalHoareTripleChecker+Time [2021-11-05 20:56:45,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9252 Valid, 18694 Invalid, 133 Unknown, 0 Unchecked, 20.50ms Time], IncrementalHoareTripleChecker [55 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 153.11ms Time] [2021-11-05 20:56:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35364 states.