./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.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 1742c34f7a214b263d92b02d9484c07ad1ab106a7adf554dae38d13e5f5f8336 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:27:00,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:27:00,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:27:01,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:27:01,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:27:01,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:27:01,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:27:01,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:27:01,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:27:01,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:27:01,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:27:01,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:27:01,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:27:01,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:27:01,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:27:01,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:27:01,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:27:01,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:27:01,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:27:01,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:27:01,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:27:01,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:27:01,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:27:01,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:27:01,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:27:01,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:27:01,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:27:01,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:27:01,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:27:01,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:27:01,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:27:01,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:27:01,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:27:01,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:27:01,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:27:01,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:27:01,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:27:01,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:27:01,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:27:01,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:27:01,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:27:01,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:27:01,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:27:01,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:27:01,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:27:01,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:27:01,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:27:01,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:27:01,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:27:01,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:27:01,080 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:27:01,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:27:01,081 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:27:01,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:27:01,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:27:01,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:27:01,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:27:01,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:27:01,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:27:01,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:27:01,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:27:01,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1742c34f7a214b263d92b02d9484c07ad1ab106a7adf554dae38d13e5f5f8336 [2021-12-28 04:27:01,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:27:01,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:27:01,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:27:01,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:27:01,350 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:27:01,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-28 04:27:01,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acd64f00/8fef21179ebf42e58bab088bfdef6806/FLAGd3d4057e6 [2021-12-28 04:27:02,034 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:27:02,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-28 04:27:02,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acd64f00/8fef21179ebf42e58bab088bfdef6806/FLAGd3d4057e6 [2021-12-28 04:27:02,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acd64f00/8fef21179ebf42e58bab088bfdef6806 [2021-12-28 04:27:02,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:27:02,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:27:02,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:27:02,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:27:02,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:27:02,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:27:02" (1/1) ... [2021-12-28 04:27:02,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f17813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:02, skipping insertion in model container [2021-12-28 04:27:02,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:27:02" (1/1) ... [2021-12-28 04:27:02,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:27:02,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:27:04,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i[374730,374743] [2021-12-28 04:27:04,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:27:04,278 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:27:04,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i[374730,374743] [2021-12-28 04:27:04,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:27:04,747 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:27:04,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04 WrapperNode [2021-12-28 04:27:04,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:27:04,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:27:04,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:27:04,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:27:04,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:04,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,157 INFO L137 Inliner]: procedures = 598, calls = 3919, calls flagged for inlining = 265, calls inlined = 256, statements flattened = 9657 [2021-12-28 04:27:05,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:27:05,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:27:05,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:27:05,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:27:05,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:27:05,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:27:05,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:27:05,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:27:05,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (1/1) ... [2021-12-28 04:27:05,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:27:05,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:27:05,504 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) [2021-12-28 04:27:05,514 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 [2021-12-28 04:27:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-12-28 04:27:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-12-28 04:27:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-12-28 04:27:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-12-28 04:27:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-28 04:27:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-28 04:27:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-12-28 04:27:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-12-28 04:27:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-28 04:27:05,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-28 04:27:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-12-28 04:27:05,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-12-28 04:27:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-12-28 04:27:05,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-12-28 04:27:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-28 04:27:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-12-28 04:27:05,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-12-28 04:27:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-28 04:27:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-28 04:27:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-12-28 04:27:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-12-28 04:27:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:27:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:27:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-12-28 04:27:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-12-28 04:27:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-12-28 04:27:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-12-28 04:27:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-12-28 04:27:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-12-28 04:27:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-28 04:27:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-28 04:27:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-12-28 04:27:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-12-28 04:27:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:27:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:27:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-12-28 04:27:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-12-28 04:27:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:27:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:27:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-12-28 04:27:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-12-28 04:27:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-12-28 04:27:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-12-28 04:27:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-28 04:27:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-28 04:27:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-12-28 04:27:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-12-28 04:27:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-12-28 04:27:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-12-28 04:27:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-12-28 04:27:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-28 04:27:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-28 04:27:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-28 04:27:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-28 04:27:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-12-28 04:27:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-12-28 04:27:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-12-28 04:27:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-12-28 04:27:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:27:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:27:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-12-28 04:27:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-12-28 04:27:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-12-28 04:27:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-12-28 04:27:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 04:27:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 04:27:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-12-28 04:27:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-12-28 04:27:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-12-28 04:27:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-12-28 04:27:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-12-28 04:27:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-12-28 04:27:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-12-28 04:27:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-12-28 04:27:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-12-28 04:27:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-12-28 04:27:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-12-28 04:27:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-12-28 04:27:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:27:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:27:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-12-28 04:27:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-12-28 04:27:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-12-28 04:27:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-12-28 04:27:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-12-28 04:27:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-12-28 04:27:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-12-28 04:27:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-12-28 04:27:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-12-28 04:27:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-12-28 04:27:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-28 04:27:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-28 04:27:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 04:27:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-12-28 04:27:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-12-28 04:27:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-12-28 04:27:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-12-28 04:27:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:27:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:27:05,583 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:27:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:27:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-12-28 04:27:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-12-28 04:27:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:27:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-12-28 04:27:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-12-28 04:27:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-12-28 04:27:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-12-28 04:27:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:27:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:27:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-12-28 04:27:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-12-28 04:27:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-12-28 04:27:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-12-28 04:27:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 04:27:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 04:27:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-28 04:27:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-28 04:27:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:27:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-12-28 04:27:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-12-28 04:27:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-12-28 04:27:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-12-28 04:27:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:27:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:27:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-12-28 04:27:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-12-28 04:27:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-12-28 04:27:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-12-28 04:27:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-12-28 04:27:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-12-28 04:27:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-12-28 04:27:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-12-28 04:27:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:27:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-12-28 04:27:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-12-28 04:27:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-12-28 04:27:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-12-28 04:27:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:27:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:27:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-12-28 04:27:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-12-28 04:27:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-12-28 04:27:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-12-28 04:27:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:27:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:27:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-12-28 04:27:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-12-28 04:27:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-28 04:27:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-28 04:27:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-12-28 04:27:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-12-28 04:27:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-12-28 04:27:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-12-28 04:27:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:27:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:27:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-12-28 04:27:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-12-28 04:27:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-12-28 04:27:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-12-28 04:27:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:27:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:27:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-12-28 04:27:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-12-28 04:27:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-12-28 04:27:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-28 04:27:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-28 04:27:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-12-28 04:27:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-12-28 04:27:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-28 04:27:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-28 04:27:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:27:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-12-28 04:27:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-12-28 04:27:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-28 04:27:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-28 04:27:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-12-28 04:27:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-12-28 04:27:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:27:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:27:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:27:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-12-28 04:27:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-12-28 04:27:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-28 04:27:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-28 04:27:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-12-28 04:27:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-12-28 04:27:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-12-28 04:27:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-12-28 04:27:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-12-28 04:27:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-12-28 04:27:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-28 04:27:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-28 04:27:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-12-28 04:27:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-12-28 04:27:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-12-28 04:27:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-12-28 04:27:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-28 04:27:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-28 04:27:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-12-28 04:27:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-12-28 04:27:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-12-28 04:27:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-12-28 04:27:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 04:27:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 04:27:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-12-28 04:27:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-12-28 04:27:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-12-28 04:27:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-12-28 04:27:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-12-28 04:27:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-12-28 04:27:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-12-28 04:27:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-12-28 04:27:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-12-28 04:27:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-12-28 04:27:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-28 04:27:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-28 04:27:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-12-28 04:27:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-12-28 04:27:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 04:27:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 04:27:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:27:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:27:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-12-28 04:27:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-12-28 04:27:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-12-28 04:27:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-12-28 04:27:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-12-28 04:27:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-12-28 04:27:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-12-28 04:27:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-12-28 04:27:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-28 04:27:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-28 04:27:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-12-28 04:27:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-12-28 04:27:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:27:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:27:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-12-28 04:27:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-12-28 04:27:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:27:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:27:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-12-28 04:27:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-12-28 04:27:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-12-28 04:27:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-12-28 04:27:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-28 04:27:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-28 04:27:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-12-28 04:27:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-12-28 04:27:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-12-28 04:27:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-12-28 04:27:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-12-28 04:27:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-12-28 04:27:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:27:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:27:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:27:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:27:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-12-28 04:27:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-12-28 04:27:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-12-28 04:27:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-12-28 04:27:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-12-28 04:27:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-12-28 04:27:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-12-28 04:27:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-12-28 04:27:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-12-28 04:27:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-12-28 04:27:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-12-28 04:27:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-12-28 04:27:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-12-28 04:27:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-12-28 04:27:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-12-28 04:27:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-12-28 04:27:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-12-28 04:27:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-12-28 04:27:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-12-28 04:27:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-12-28 04:27:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-12-28 04:27:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-12-28 04:27:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-12-28 04:27:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-12-28 04:27:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:27:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:27:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-12-28 04:27:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-12-28 04:27:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:27:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:27:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-28 04:27:05,626 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-28 04:27:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-12-28 04:27:05,626 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-12-28 04:27:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-28 04:27:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-28 04:27:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:27:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:27:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-12-28 04:27:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-12-28 04:27:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:27:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:27:05,627 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-12-28 04:27:05,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-12-28 04:27:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-28 04:27:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-28 04:27:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-12-28 04:27:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-12-28 04:27:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-12-28 04:27:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-12-28 04:27:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-28 04:27:05,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-28 04:27:05,628 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-12-28 04:27:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-12-28 04:27:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-12-28 04:27:05,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-12-28 04:27:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-12-28 04:27:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-12-28 04:27:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-28 04:27:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:27:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-28 04:27:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-12-28 04:27:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:27:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-12-28 04:27:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-12-28 04:27:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-28 04:27:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-28 04:27:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_32 [2021-12-28 04:27:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_32 [2021-12-28 04:27:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:27:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:27:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-12-28 04:27:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-12-28 04:27:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-12-28 04:27:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-12-28 04:27:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-28 04:27:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-28 04:27:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-12-28 04:27:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-12-28 04:27:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-12-28 04:27:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-12-28 04:27:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-12-28 04:27:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-12-28 04:27:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:27:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-12-28 04:27:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-12-28 04:27:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_31 [2021-12-28 04:27:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_31 [2021-12-28 04:27:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-12-28 04:27:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-12-28 04:27:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:27:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:27:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-28 04:27:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-28 04:27:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-12-28 04:27:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-12-28 04:27:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:27:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:27:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 04:27:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 04:27:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-12-28 04:27:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-12-28 04:27:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-12-28 04:27:05,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-12-28 04:27:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-28 04:27:05,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-28 04:27:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-28 04:27:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-28 04:27:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:27:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:27:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-12-28 04:27:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-12-28 04:27:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-12-28 04:27:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-12-28 04:27:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-12-28 04:27:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-12-28 04:27:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-28 04:27:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-28 04:27:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-12-28 04:27:05,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-12-28 04:27:05,659 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 04:27:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 04:27:05,660 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-12-28 04:27:05,662 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-12-28 04:27:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-12-28 04:27:05,662 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-12-28 04:27:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-28 04:27:05,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-28 04:27:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-12-28 04:27:05,663 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-12-28 04:27:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-12-28 04:27:05,663 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-12-28 04:27:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-12-28 04:27:05,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-12-28 04:27:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-12-28 04:27:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-12-28 04:27:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-12-28 04:27:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-12-28 04:27:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-12-28 04:27:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-12-28 04:27:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-12-28 04:27:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-12-28 04:27:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:27:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-12-28 04:27:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:27:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-12-28 04:27:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:27:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-12-28 04:27:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-12-28 04:27:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-12-28 04:27:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-12-28 04:27:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:27:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:27:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-12-28 04:27:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-12-28 04:27:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:27:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:27:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-12-28 04:27:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-12-28 04:27:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-12-28 04:27:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-12-28 04:27:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-28 04:27:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-28 04:27:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-12-28 04:27:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-12-28 04:27:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-12-28 04:27:05,667 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-12-28 04:27:05,667 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-12-28 04:27:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-12-28 04:27:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-12-28 04:27:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-12-28 04:27:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-12-28 04:27:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-12-28 04:27:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-28 04:27:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-28 04:27:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-12-28 04:27:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-12-28 04:27:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-12-28 04:27:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-12-28 04:27:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:27:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:27:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-28 04:27:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-28 04:27:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-12-28 04:27:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-12-28 04:27:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 04:27:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 04:27:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-12-28 04:27:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-12-28 04:27:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-12-28 04:27:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-12-28 04:27:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-12-28 04:27:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-12-28 04:27:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-28 04:27:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-28 04:27:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-12-28 04:27:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-12-28 04:27:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-28 04:27:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-28 04:27:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-12-28 04:27:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-12-28 04:27:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-12-28 04:27:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-12-28 04:27:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-12-28 04:27:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-12-28 04:27:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-28 04:27:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-12-28 04:27:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-12-28 04:27:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-12-28 04:27:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-12-28 04:27:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-12-28 04:27:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-12-28 04:27:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-12-28 04:27:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-12-28 04:27:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:27:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:27:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:27:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:27:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-12-28 04:27:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-12-28 04:27:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-12-28 04:27:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-12-28 04:27:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-12-28 04:27:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-12-28 04:27:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-12-28 04:27:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-12-28 04:27:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:27:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-12-28 04:27:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-12-28 04:27:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-12-28 04:27:05,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-12-28 04:27:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-28 04:27:05,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-28 04:27:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-28 04:27:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-28 04:27:05,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-28 04:27:05,693 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-12-28 04:27:05,693 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-12-28 04:27:06,750 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:27:06,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:27:07,157 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:27:13,687 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:27:13,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:27:13,714 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:27:13,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:13 BoogieIcfgContainer [2021-12-28 04:27:13,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:27:13,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:27:13,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:27:13,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:27:13,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:27:02" (1/3) ... [2021-12-28 04:27:13,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c47240f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:13, skipping insertion in model container [2021-12-28 04:27:13,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:04" (2/3) ... [2021-12-28 04:27:13,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c47240f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:13, skipping insertion in model container [2021-12-28 04:27:13,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:13" (3/3) ... [2021-12-28 04:27:13,725 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-28 04:27:13,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:27:13,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:27:13,780 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:27:13,785 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 [2021-12-28 04:27:13,786 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:27:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 3809 states, 2456 states have (on average 1.2780944625407167) internal successors, (3139), 2539 states have internal predecessors, (3139), 1106 states have call successors, (1106), 246 states have call predecessors, (1106), 245 states have return successors, (1100), 1071 states have call predecessors, (1100), 1100 states have call successors, (1100) [2021-12-28 04:27:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-28 04:27:13,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:13,868 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:13,868 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1185914512, now seen corresponding path program 1 times [2021-12-28 04:27:13,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:13,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085877033] [2021-12-28 04:27:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:13,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:27:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:27:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:27:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:27:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:27:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 04:27:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 04:27:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:27:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:27:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-28 04:27:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:27:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-28 04:27:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-28 04:27:14,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085877033] [2021-12-28 04:27:14,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085877033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:14,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:14,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:27:14,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822577580] [2021-12-28 04:27:14,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:14,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:27:14,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:14,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:27:14,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:27:14,942 INFO L87 Difference]: Start difference. First operand has 3809 states, 2456 states have (on average 1.2780944625407167) internal successors, (3139), 2539 states have internal predecessors, (3139), 1106 states have call successors, (1106), 246 states have call predecessors, (1106), 245 states have return successors, (1100), 1071 states have call predecessors, (1100), 1100 states have call successors, (1100) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:27:29,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:31,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:33,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:35,771 INFO L93 Difference]: Finished difference Result 8292 states and 12120 transitions. [2021-12-28 04:27:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:27:35,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 249 [2021-12-28 04:27:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:35,824 INFO L225 Difference]: With dead ends: 8292 [2021-12-28 04:27:35,839 INFO L226 Difference]: Without dead ends: 4462 [2021-12-28 04:27:35,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:35,878 INFO L933 BasicCegarLoop]: 4807 mSDtfsCounter, 2722 mSDsluCounter, 5380 mSDsCounter, 0 mSdLazyCounter, 4855 mSolverCounterSat, 3199 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 10187 SdHoareTripleChecker+Invalid, 8055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3199 IncrementalHoareTripleChecker+Valid, 4855 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:35,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2826 Valid, 10187 Invalid, 8055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3199 Valid, 4855 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2021-12-28 04:27:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4462 states. [2021-12-28 04:27:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4462 to 3783. [2021-12-28 04:27:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 2439 states have (on average 1.2726527265272654) internal successors, (3104), 2514 states have internal predecessors, (3104), 1099 states have call successors, (1099), 245 states have call predecessors, (1099), 244 states have return successors, (1097), 1068 states have call predecessors, (1097), 1097 states have call successors, (1097) [2021-12-28 04:27:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 5300 transitions. [2021-12-28 04:27:36,170 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 5300 transitions. Word has length 249 [2021-12-28 04:27:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:36,172 INFO L470 AbstractCegarLoop]: Abstraction has 3783 states and 5300 transitions. [2021-12-28 04:27:36,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:27:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 5300 transitions. [2021-12-28 04:27:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-28 04:27:36,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:36,182 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:36,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:27:36,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:36,183 INFO L85 PathProgramCache]: Analyzing trace with hash -221808994, now seen corresponding path program 1 times [2021-12-28 04:27:36,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:36,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112296982] [2021-12-28 04:27:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:36,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:27:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:27:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:27:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:27:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:27:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 04:27:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 04:27:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:27:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:27:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-28 04:27:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:27:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-28 04:27:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-28 04:27:36,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:36,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112296982] [2021-12-28 04:27:36,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112296982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:36,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:36,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:27:36,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889385684] [2021-12-28 04:27:36,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:36,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:27:36,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:27:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:36,707 INFO L87 Difference]: Start difference. First operand 3783 states and 5300 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-28 04:27:53,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:56,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:57,625 INFO L93 Difference]: Finished difference Result 11473 states and 16317 transitions. [2021-12-28 04:27:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:27:57,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 249 [2021-12-28 04:27:57,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:57,680 INFO L225 Difference]: With dead ends: 11473 [2021-12-28 04:27:57,680 INFO L226 Difference]: Without dead ends: 7729 [2021-12-28 04:27:57,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:27:57,698 INFO L933 BasicCegarLoop]: 6057 mSDtfsCounter, 8398 mSDsluCounter, 7730 mSDsCounter, 0 mSdLazyCounter, 7633 mSolverCounterSat, 6428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8887 SdHoareTripleChecker+Valid, 13787 SdHoareTripleChecker+Invalid, 14061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6428 IncrementalHoareTripleChecker+Valid, 7633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:57,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8887 Valid, 13787 Invalid, 14061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6428 Valid, 7633 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2021-12-28 04:27:57,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7729 states. [2021-12-28 04:27:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7729 to 6436. [2021-12-28 04:27:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6436 states, 4122 states have (on average 1.2612809315866085) internal successors, (5199), 4268 states have internal predecessors, (5199), 1857 states have call successors, (1857), 457 states have call predecessors, (1857), 456 states have return successors, (1855), 1797 states have call predecessors, (1855), 1855 states have call successors, (1855) [2021-12-28 04:27:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6436 states to 6436 states and 8911 transitions. [2021-12-28 04:27:57,931 INFO L78 Accepts]: Start accepts. Automaton has 6436 states and 8911 transitions. Word has length 249 [2021-12-28 04:27:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:57,934 INFO L470 AbstractCegarLoop]: Abstraction has 6436 states and 8911 transitions. [2021-12-28 04:27:57,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-28 04:27:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6436 states and 8911 transitions. [2021-12-28 04:27:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-12-28 04:27:57,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:57,941 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-12-28 04:27:57,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:27:57,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:57,942 INFO L85 PathProgramCache]: Analyzing trace with hash 44032154, now seen corresponding path program 1 times [2021-12-28 04:27:57,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:57,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898925990] [2021-12-28 04:27:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:57,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:27:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:27:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:27:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:27:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:27:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 04:27:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 04:27:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:27:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:27:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-28 04:27:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:27:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-28 04:27:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-28 04:27:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-28 04:27:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-28 04:27:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2021-12-28 04:27:58,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:58,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898925990] [2021-12-28 04:27:58,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898925990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:58,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:58,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:27:58,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604361866] [2021-12-28 04:27:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:58,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:27:58,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:27:58,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:27:58,557 INFO L87 Difference]: Start difference. First operand 6436 states and 8911 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)