./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-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-08_1a-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 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:51:50,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:51:50,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:51:50,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:51:50,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:51:50,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:51:50,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:51:50,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:51:50,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:51:50,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:51:50,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:51:50,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:51:50,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:51:50,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:51:50,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:51:50,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:51:50,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:51:50,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:51:50,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:51:50,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:51:50,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:51:50,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:51:50,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:51:50,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:51:50,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:51:50,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:51:50,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:51:50,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:51:50,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:51:50,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:51:50,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:51:50,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:51:50,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:51:50,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:51:50,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:51:50,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:51:50,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:51:50,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:51:50,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:51:50,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:51:50,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:51:50,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:51:50,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:51:50,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:51:50,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:51:50,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:51:50,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:51:50,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:51:50,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:51:50,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:51:50,989 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:51:50,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:51:50,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:51:50,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:51:50,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:51:50,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:51:50,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:51:50,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:51:50,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:51:50,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:51:50,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:51:50,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:51:50,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:51:50,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:51:50,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:51:50,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:51:50,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:51:50,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:51:50,999 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 [2021-12-22 14:51:51,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:51:51,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:51:51,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:51:51,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:51:51,208 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:51:51,209 INFO L432 ainManager$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-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-22 14:51:51,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29f5a012/1f4b512b38344d668d737a28c764b560/FLAG678af2b97 [2021-12-22 14:51:51,947 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:51:51,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-22 14:51:51,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29f5a012/1f4b512b38344d668d737a28c764b560/FLAG678af2b97 [2021-12-22 14:51:52,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29f5a012/1f4b512b38344d668d737a28c764b560 [2021-12-22 14:51:52,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:51:52,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:51:52,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:51:52,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:51:52,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:51:52,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:51:52" (1/1) ... [2021-12-22 14:51:52,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9bf0bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:52, skipping insertion in model container [2021-12-22 14:51:52,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:51:52" (1/1) ... [2021-12-22 14:51:52,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:51:52,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:51:55,452 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-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-12-22 14:51:55,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:51:55,542 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:51:55,873 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-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-12-22 14:51:55,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:51:56,018 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:51:56,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56 WrapperNode [2021-12-22 14:51:56,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:51:56,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:51:56,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:51:56,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:51:56,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,382 INFO L137 Inliner]: procedures = 595, calls = 3937, calls flagged for inlining = 264, calls inlined = 257, statements flattened = 9795 [2021-12-22 14:51:56,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:51:56,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:51:56,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:51:56,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:51:56,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:51:56,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:51:56,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:51:56,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:51:56,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (1/1) ... [2021-12-22 14:51:56,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:51:56,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:51:56,836 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) [2021-12-22 14:51:56,838 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 [2021-12-22 14:51:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-12-22 14:51:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-12-22 14:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-12-22 14:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-12-22 14:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 14:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 14:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-12-22 14:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-12-22 14:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-22 14:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-22 14:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-12-22 14:51:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-12-22 14:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-12-22 14:51:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-12-22 14:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-22 14:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-12-22 14:51:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-12-22 14:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-22 14:51:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-22 14:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-12-22 14:51:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-12-22 14:51:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:51:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:51:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-12-22 14:51:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-12-22 14:51:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-12-22 14:51:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-12-22 14:51:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-12-22 14:51:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-12-22 14:51:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-22 14:51:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-22 14:51:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-12-22 14:51:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-12-22 14:51:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-12-22 14:51:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-12-22 14:51:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:51:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:51:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-12-22 14:51:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-12-22 14:51:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-12-22 14:51:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-12-22 14:51:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-22 14:51:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-22 14:51:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-12-22 14:51:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-12-22 14:51:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-12-22 14:51:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-12-22 14:51:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-12-22 14:51:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-22 14:51:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-22 14:51:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-22 14:51:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-22 14:51:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-12-22 14:51:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-12-22 14:51:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-12-22 14:51:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-12-22 14:51:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:51:56,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:51:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-12-22 14:51:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-12-22 14:51:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-12-22 14:51:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-12-22 14:51:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:51:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:51:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-12-22 14:51:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-12-22 14:51:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-12-22 14:51:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-12-22 14:51:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-12-22 14:51:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-12-22 14:51:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-12-22 14:51:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-12-22 14:51:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-12-22 14:51:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-12-22 14:51:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-12-22 14:51:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-12-22 14:51:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:51:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:51:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-12-22 14:51:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-12-22 14:51:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-12-22 14:51:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-12-22 14:51:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-12-22 14:51:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-12-22 14:51:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-12-22 14:51:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-12-22 14:51:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-12-22 14:51:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-12-22 14:51:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-22 14:51:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-22 14:51:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 14:51:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-12-22 14:51:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-12-22 14:51:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-12-22 14:51:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-12-22 14:51:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 14:51:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 14:51:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:51:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:51:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-12-22 14:51:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-12-22 14:51:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:51:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-12-22 14:51:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-12-22 14:51:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-12-22 14:51:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-12-22 14:51:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:51:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:51:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-12-22 14:51:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-12-22 14:51:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-12-22 14:51:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-12-22 14:51:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 14:51:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 14:51:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-22 14:51:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-22 14:51:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:51:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-12-22 14:51:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-12-22 14:51:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-12-22 14:51:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-12-22 14:51:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:51:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:51:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-12-22 14:51:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-12-22 14:51:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-12-22 14:51:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-12-22 14:51:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:51:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-12-22 14:51:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-12-22 14:51:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-12-22 14:51:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-12-22 14:51:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-12-22 14:51:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-12-22 14:51:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-12-22 14:51:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-12-22 14:51:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:51:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-12-22 14:51:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-12-22 14:51:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-12-22 14:51:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-12-22 14:51:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:51:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:51:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-12-22 14:51:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-12-22 14:51:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-12-22 14:51:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-12-22 14:51:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-12-22 14:51:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-22 14:51:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-12-22 14:51:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-12-22 14:51:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:51:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-12-22 14:51:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-12-22 14:51:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-12-22 14:51:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-12-22 14:51:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_12 [2021-12-22 14:51:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_12 [2021-12-22 14:51:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:51:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:51:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-12-22 14:51:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-12-22 14:51:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-12-22 14:51:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-12-22 14:51:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-12-22 14:51:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-22 14:51:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-12-22 14:51:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:51:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:51:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-12-22 14:51:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-22 14:51:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-12-22 14:51:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:51:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-12-22 14:51:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-12-22 14:51:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-22 14:51:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-12-22 14:51:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-12-22 14:51:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-12-22 14:51:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-22 14:51:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-12-22 14:51:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-12-22 14:51:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-12-22 14:51:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-12-22 14:51:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 14:51:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 14:51:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-12-22 14:51:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-12-22 14:51:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-12-22 14:51:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-12-22 14:51:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 14:51:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 14:51:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-12-22 14:51:56,898 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-12-22 14:51:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-12-22 14:51:56,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-12-22 14:51:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-12-22 14:51:56,898 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-12-22 14:51:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-12-22 14:51:56,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-12-22 14:51:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-12-22 14:51:56,898 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-22 14:51:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-12-22 14:51:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 14:51:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:51:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-12-22 14:51:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-12-22 14:51:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-12-22 14:51:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-12-22 14:51:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-12-22 14:51:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-12-22 14:51:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-12-22 14:51:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-12-22 14:51:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 14:51:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 14:51:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-12-22 14:51:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-12-22 14:51:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:51:56,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:51:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-12-22 14:51:56,902 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-12-22 14:51:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:51:56,904 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:51:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_11 [2021-12-22 14:51:56,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_11 [2021-12-22 14:51:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-12-22 14:51:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-12-22 14:51:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-12-22 14:51:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-12-22 14:51:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-22 14:51:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-22 14:51:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-12-22 14:51:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-12-22 14:51:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-12-22 14:51:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-12-22 14:51:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-12-22 14:51:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-12-22 14:51:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:51:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-12-22 14:51:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-12-22 14:51:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-12-22 14:51:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-12-22 14:51:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-12-22 14:51:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-12-22 14:51:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-12-22 14:51:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-12-22 14:51:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-12-22 14:51:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-22 14:51:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-22 14:51:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-12-22 14:51:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-12-22 14:51:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-12-22 14:51:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-12-22 14:51:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:51:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-12-22 14:51:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:51:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 14:51:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-12-22 14:51:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 14:51:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:51:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:51:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-12-22 14:51:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:51:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-12-22 14:51:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-22 14:51:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-12-22 14:51:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-12-22 14:51:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 14:51:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-12-22 14:51:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-12-22 14:51:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-12-22 14:51:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-22 14:51:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-22 14:51:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 14:51:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:51:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-22 14:51:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-12-22 14:51:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:51:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-12-22 14:51:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-22 14:51:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-12-22 14:51:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-12-22 14:51:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-22 14:51:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-12-22 14:51:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-12-22 14:51:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-12-22 14:51:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-12-22 14:51:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-12-22 14:51:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-12-22 14:51:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:51:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-12-22 14:51:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-12-22 14:51:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-12-22 14:51:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-12-22 14:51:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:51:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:51:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-22 14:51:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-22 14:51:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:51:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:51:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-12-22 14:51:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-12-22 14:51:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:51:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:51:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 14:51:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-12-22 14:51:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-12-22 14:51:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-22 14:51:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-22 14:51:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-12-22 14:51:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-12-22 14:51:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-12-22 14:51:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-12-22 14:51:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-22 14:51:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-12-22 14:51:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:51:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-12-22 14:51:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-12-22 14:51:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-12-22 14:51:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-12-22 14:51:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-12-22 14:51:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-12-22 14:51:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-12-22 14:51:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-12-22 14:51:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-12-22 14:51:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-12-22 14:51:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-12-22 14:51:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-12-22 14:51:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-12-22 14:51:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-12-22 14:51:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:51:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-12-22 14:51:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-12-22 14:51:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:51:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-12-22 14:51:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-12-22 14:51:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-12-22 14:51:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-12-22 14:51:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:51:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:51:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-12-22 14:51:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-12-22 14:51:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:51:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:51:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-12-22 14:51:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-12-22 14:51:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-12-22 14:51:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-12-22 14:51:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-22 14:51:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-12-22 14:51:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-12-22 14:51:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-12-22 14:51:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-12-22 14:51:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-12-22 14:51:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-12-22 14:51:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-22 14:51:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-12-22 14:51:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-12-22 14:51:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:51:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-22 14:51:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-12-22 14:51:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 14:51:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-12-22 14:51:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-12-22 14:51:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-12-22 14:51:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-22 14:51:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-22 14:51:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-12-22 14:51:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-22 14:51:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-12-22 14:51:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-12-22 14:51:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-12-22 14:51:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-22 14:51:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-12-22 14:51:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-12-22 14:51:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-12-22 14:51:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-12-22 14:51:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:51:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:51:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:51:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-12-22 14:51:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-12-22 14:51:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-12-22 14:51:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-12-22 14:51:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-12-22 14:51:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-12-22 14:51:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-12-22 14:51:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-12-22 14:51:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-12-22 14:51:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-22 14:51:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-22 14:51:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-22 14:51:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-22 14:51:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-12-22 14:51:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-12-22 14:51:58,023 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:51:58,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:51:58,627 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:52:06,020 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:52:06,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:52:06,047 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:52:06,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:52:06 BoogieIcfgContainer [2021-12-22 14:52:06,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:52:06,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:52:06,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:52:06,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:52:06,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:51:52" (1/3) ... [2021-12-22 14:52:06,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cad567c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:52:06, skipping insertion in model container [2021-12-22 14:52:06,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:51:56" (2/3) ... [2021-12-22 14:52:06,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cad567c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:52:06, skipping insertion in model container [2021-12-22 14:52:06,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:52:06" (3/3) ... [2021-12-22 14:52:06,059 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-22 14:52:06,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:52:06,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:52:06,124 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:52:06,150 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 [2021-12-22 14:52:06,150 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:52:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) [2021-12-22 14:52:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-22 14:52:06,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:06,234 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, 1, 1, 1, 1] [2021-12-22 14:52:06,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:06,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash -901261265, now seen corresponding path program 1 times [2021-12-22 14:52:06,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:06,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302145478] [2021-12-22 14:52:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:06,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:52:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:52:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:52:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 14:52:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:52:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 14:52:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-22 14:52:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-22 14:52:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-22 14:52:07,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:07,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302145478] [2021-12-22 14:52:07,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302145478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:07,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:07,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:52:07,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023575792] [2021-12-22 14:52:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:07,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:52:07,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:52:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:52:07,348 INFO L87 Difference]: Start difference. First operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:52:18,642 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 [] [2021-12-22 14:52:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:19,674 INFO L93 Difference]: Finished difference Result 8414 states and 12295 transitions. [2021-12-22 14:52:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:52:19,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-12-22 14:52:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:19,722 INFO L225 Difference]: With dead ends: 8414 [2021-12-22 14:52:19,722 INFO L226 Difference]: Without dead ends: 4534 [2021-12-22 14:52:19,750 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 [2021-12-22 14:52:19,754 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4324 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 5032 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4430 SdHoareTripleChecker+Valid, 7050 SdHoareTripleChecker+Invalid, 7314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5032 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:19,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4430 Valid, 7050 Invalid, 7314 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5032 Valid, 2281 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2021-12-22 14:52:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-12-22 14:52:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 3843. [2021-12-22 14:52:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2482 states have (on average 1.2695406929895245) internal successors, (3151), 2557 states have internal predecessors, (3151), 1118 states have call successors, (1118), 243 states have call predecessors, (1118), 242 states have return successors, (1116), 1087 states have call predecessors, (1116), 1116 states have call successors, (1116) [2021-12-22 14:52:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5385 transitions. [2021-12-22 14:52:19,990 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5385 transitions. Word has length 253 [2021-12-22 14:52:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:19,992 INFO L470 AbstractCegarLoop]: Abstraction has 3843 states and 5385 transitions. [2021-12-22 14:52:19,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:52:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5385 transitions. [2021-12-22 14:52:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-22 14:52:20,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:20,001 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, 1, 1, 1, 1] [2021-12-22 14:52:20,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:52:20,001 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1699436963, now seen corresponding path program 1 times [2021-12-22 14:52:20,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:20,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179979086] [2021-12-22 14:52:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:20,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:52:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:52:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:52:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 14:52:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:52:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 14:52:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-22 14:52:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-22 14:52:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-22 14:52:20,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:20,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179979086] [2021-12-22 14:52:20,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179979086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:20,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:20,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:52:20,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978237639] [2021-12-22 14:52:20,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:20,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:52:20,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:52:20,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:52:20,641 INFO L87 Difference]: Start difference. First operand 3843 states and 5385 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:52:24,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:52:37,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:52:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:39,723 INFO L93 Difference]: Finished difference Result 12831 states and 18518 transitions. [2021-12-22 14:52:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:52:39,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-12-22 14:52:39,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:39,797 INFO L225 Difference]: With dead ends: 12831 [2021-12-22 14:52:39,798 INFO L226 Difference]: Without dead ends: 9021 [2021-12-22 14:52:39,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:52:39,822 INFO L933 BasicCegarLoop]: 6147 mSDtfsCounter, 13130 mSDsluCounter, 6779 mSDsCounter, 0 mSdLazyCounter, 5128 mSolverCounterSat, 10732 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13843 SdHoareTripleChecker+Valid, 12926 SdHoareTripleChecker+Invalid, 15861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10732 IncrementalHoareTripleChecker+Valid, 5128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:39,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13843 Valid, 12926 Invalid, 15861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10732 Valid, 5128 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-12-22 14:52:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-12-22 14:52:40,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7636. [2021-12-22 14:52:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7636 states, 4935 states have (on average 1.2705167173252279) internal successors, (6270), 5084 states have internal predecessors, (6270), 2216 states have call successors, (2216), 485 states have call predecessors, (2216), 484 states have return successors, (2216), 2156 states have call predecessors, (2216), 2214 states have call successors, (2216) [2021-12-22 14:52:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7636 states to 7636 states and 10702 transitions. [2021-12-22 14:52:40,164 INFO L78 Accepts]: Start accepts. Automaton has 7636 states and 10702 transitions. Word has length 253 [2021-12-22 14:52:40,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:40,167 INFO L470 AbstractCegarLoop]: Abstraction has 7636 states and 10702 transitions. [2021-12-22 14:52:40,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-22 14:52:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7636 states and 10702 transitions. [2021-12-22 14:52:40,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-12-22 14:52:40,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:40,178 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:52:40,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:52:40,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:40,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:40,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1091692974, now seen corresponding path program 1 times [2021-12-22 14:52:40,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:40,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776318742] [2021-12-22 14:52:40,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:40,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:52:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:52:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:52:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 14:52:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:52:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 14:52:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-22 14:52:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-22 14:52:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-22 14:52:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:52:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:52:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:52:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-22 14:52:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-12-22 14:52:40,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:40,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776318742] [2021-12-22 14:52:40,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776318742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:40,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:40,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:52:40,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550550447] [2021-12-22 14:52:40,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:40,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:52:40,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:40,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:52:40,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:52:40,800 INFO L87 Difference]: Start difference. First operand 7636 states and 10702 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-22 14:52:45,686 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 []