./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a3ce92b4fa97290bfce2585c8e16b416b78b6a9fb4820bd3e1a943e1210b2dc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:15:23,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:15:23,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:15:23,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:15:23,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:15:23,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:15:23,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:15:23,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:15:23,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:15:23,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:15:23,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:15:23,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:15:23,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:15:23,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:15:23,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:15:23,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:15:23,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:15:23,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:15:23,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:15:23,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:15:23,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:15:23,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:15:23,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:15:23,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:15:23,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:15:23,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:15:23,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:15:23,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:15:23,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:15:23,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:15:23,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:15:23,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:15:23,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:15:23,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:15:23,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:15:23,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:15:23,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:15:23,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:15:23,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:15:23,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:15:23,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:15:23,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:15:23,985 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:15:23,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:15:23,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:15:23,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:15:23,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:15:23,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:15:23,988 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:15:23,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:15:23,988 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:15:23,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:15:23,990 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:15:23,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:15:23,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:15:23,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:15:23,991 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:15:23,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:15:23,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:15:23,991 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:15:23,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:15:23,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:15:23,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:15:23,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:15:23,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:15:23,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:15:23,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:15:23,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:15:23,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:15:23,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:15:23,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:15:23,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:15:23,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:15:23,997 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:15:23,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:15:23,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:15:23,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:15:23,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:15:23,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:15:23,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:15:23,999 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a3ce92b4fa97290bfce2585c8e16b416b78b6a9fb4820bd3e1a943e1210b2dc [2022-11-19 07:15:24,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:15:24,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:15:24,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:15:24,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:15:24,311 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:15:24,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 07:15:24,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/data/929e0a9b0/87dada6cc64d41bfa3996ef7f2c9c718/FLAGeda61d45b [2022-11-19 07:15:25,458 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:15:25,459 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 07:15:25,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/data/929e0a9b0/87dada6cc64d41bfa3996ef7f2c9c718/FLAGeda61d45b [2022-11-19 07:15:25,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/data/929e0a9b0/87dada6cc64d41bfa3996ef7f2c9c718 [2022-11-19 07:15:25,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:15:25,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:15:25,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:15:25,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:15:25,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:15:25,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:15:25" (1/1) ... [2022-11-19 07:15:25,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a42617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:25, skipping insertion in model container [2022-11-19 07:15:25,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:15:25" (1/1) ... [2022-11-19 07:15:25,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:15:26,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:15:34,375 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i[851903,851916] [2022-11-19 07:15:34,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:15:34,486 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:15:35,555 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i[851903,851916] [2022-11-19 07:15:35,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:15:36,038 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:15:36,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36 WrapperNode [2022-11-19 07:15:36,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:15:36,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:15:36,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:15:36,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:15:36,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:36,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:37,411 INFO L138 Inliner]: procedures = 684, calls = 15192, calls flagged for inlining = 277, calls inlined = 264, statements flattened = 30069 [2022-11-19 07:15:37,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:15:37,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:15:37,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:15:37,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:15:37,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:37,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:37,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:37,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:15:38,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:15:38,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:15:38,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:15:38,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (1/1) ... [2022-11-19 07:15:38,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:15:38,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:39,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:15:39,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:15:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_ec_hdr [2022-11-19 07:15:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_ec_hdr [2022-11-19 07:15:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_unmap_leb [2022-11-19 07:15:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_unmap_leb [2022-11-19 07:15:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 07:15:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-19 07:15:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-19 07:15:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-19 07:15:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-19 07:15:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:15:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:15:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_resize_volume [2022-11-19 07:15:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_resize_volume [2022-11-19 07:15:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_internal_volumes [2022-11-19 07:15:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_internal_volumes [2022-11-19 07:15:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure __schedule_ubi_work [2022-11-19 07:15:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __schedule_ubi_work [2022-11-19 07:15:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_volume_notify [2022-11-19 07:15:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_volume_notify [2022-11-19 07:15:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:15:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:15:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_detach_mtd_dev [2022-11-19 07:15:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_detach_mtd_dev [2022-11-19 07:15:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2022-11-19 07:15:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2022-11-19 07:15:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure erase_block [2022-11-19 07:15:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_block [2022-11-19 07:15:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2022-11-19 07:15:39,148 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2022-11-19 07:15:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure return_fm_pebs [2022-11-19 07:15:39,148 INFO L138 BoogieDeclarations]: Found implementation of procedure return_fm_pebs [2022-11-19 07:15:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-19 07:15:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-19 07:15:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-19 07:15:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-19 07:15:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2022-11-19 07:15:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2022-11-19 07:15:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_read_leb [2022-11-19 07:15:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_read_leb [2022-11-19 07:15:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_device_info [2022-11-19 07:15:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_device_info [2022-11-19 07:15:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_cdev_ioctl [2022-11-19 07:15:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_cdev_ioctl [2022-11-19 07:15:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-19 07:15:39,152 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-19 07:15:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_sysfs_close [2022-11-19 07:15:39,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_sysfs_close [2022-11-19 07:15:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure vtbl_check [2022-11-19 07:15:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure vtbl_check [2022-11-19 07:15:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_remove [2022-11-19 07:15:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_remove [2022-11-19 07:15:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure set_seen [2022-11-19 07:15:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure set_seen [2022-11-19 07:15:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_vid_hdr [2022-11-19 07:15:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_vid_hdr [2022-11-19 07:15:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_cdev_ioctl [2022-11-19 07:15:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_cdev_ioctl [2022-11-19 07:15:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_cleanup [2022-11-19 07:15:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_cleanup [2022-11-19 07:15:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-19 07:15:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-19 07:15:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_compare_lebs [2022-11-19 07:15:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_compare_lebs [2022-11-19 07:15:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_fm_peb [2022-11-19 07:15:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_fm_peb [2022-11-19 07:15:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:15:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:15:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2022-11-19 07:15:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2022-11-19 07:15:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_ioctl [2022-11-19 07:15:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_ioctl [2022-11-19 07:15:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_fastmap [2022-11-19 07:15:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_fastmap [2022-11-19 07:15:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure is_error_sane [2022-11-19 07:15:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure is_error_sane [2022-11-19 07:15:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_vid_hdr [2022-11-19 07:15:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_vid_hdr [2022-11-19 07:15:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vid_hdr [2022-11-19 07:15:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vid_hdr [2022-11-19 07:15:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure rb_next [2022-11-19 07:15:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_next [2022-11-19 07:15:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_volume [2022-11-19 07:15:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_volume [2022-11-19 07:15:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:15:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calc_data_len [2022-11-19 07:15:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calc_data_len [2022-11-19 07:15:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_data [2022-11-19 07:15:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_data [2022-11-19 07:15:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure dfs_file_write [2022-11-19 07:15:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dfs_file_write [2022-11-19 07:15:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_close [2022-11-19 07:15:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_close [2022-11-19 07:15:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:15:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:15:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_vid_hdr [2022-11-19 07:15:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_vid_hdr [2022-11-19 07:15:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:15:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 07:15:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 07:15:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure rb_link_node [2022-11-19 07:15:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_link_node [2022-11-19 07:15:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_7 [2022-11-19 07:15:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_7 [2022-11-19 07:15:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_find_av [2022-11-19 07:15:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_find_av [2022-11-19 07:15:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 07:15:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 07:15:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:15:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:15:39,169 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-19 07:15:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-19 07:15:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ubi_work [2022-11-19 07:15:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ubi_work [2022-11-19 07:15:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase___0 [2022-11-19 07:15:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase___0 [2022-11-19 07:15:39,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:15:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:15:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure dev_attribute_show [2022-11-19 07:15:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_attribute_show [2022-11-19 07:15:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-19 07:15:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-19 07:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_ec_hdr [2022-11-19 07:15:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_ec_hdr [2022-11-19 07:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2022-11-19 07:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2022-11-19 07:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_not_bad [2022-11-19 07:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_not_bad [2022-11-19 07:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_eb [2022-11-19 07:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_eb [2022-11-19 07:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure update_fastmap_work_fn [2022-11-19 07:15:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fastmap_work_fn [2022-11-19 07:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev_nolock [2022-11-19 07:15:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev_nolock [2022-11-19 07:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-19 07:15:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-19 07:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2022-11-19 07:15:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2022-11-19 07:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:15:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calculate_reserved [2022-11-19 07:15:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calculate_reserved [2022-11-19 07:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit_dev [2022-11-19 07:15:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit_dev [2022-11-19 07:15:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:15:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-19 07:15:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-19 07:15:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr [2022-11-19 07:15:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr [2022-11-19 07:15:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure find_mean_wl_entry [2022-11-19 07:15:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mean_wl_entry [2022-11-19 07:15:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:15:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:15:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:15:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-19 07:15:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-19 07:15:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_data [2022-11-19 07:15:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_data [2022-11-19 07:15:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_add [2022-11-19 07:15:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_add [2022-11-19 07:15:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:15:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:15:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume_nm [2022-11-19 07:15:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume_nm [2022-11-19 07:15:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-19 07:15:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-19 07:15:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-19 07:15:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-19 07:15:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2022-11-19 07:15:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2022-11-19 07:15:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-19 07:15:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-19 07:15:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:15:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:15:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 07:15:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 07:15:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure new_fm_vhdr [2022-11-19 07:15:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure new_fm_vhdr [2022-11-19 07:15:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2022-11-19 07:15:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure yield [2022-11-19 07:15:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-19 07:15:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-19 07:15:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure find_wl_entry [2022-11-19 07:15:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure find_wl_entry [2022-11-19 07:15:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-11-19 07:15:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-11-19 07:15:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_io [2022-11-19 07:15:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_io [2022-11-19 07:15:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure __vmalloc [2022-11-19 07:15:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __vmalloc [2022-11-19 07:15:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_is_bad [2022-11-19 07:15:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_is_bad [2022-11-19 07:15:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure vol_id2idx [2022-11-19 07:15:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_id2idx [2022-11-19 07:15:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:15:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:15:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_attach_mtd_dev [2022-11-19 07:15:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_attach_mtd_dev [2022-11-19 07:15:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-19 07:15:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-19 07:15:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:15:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_reserved [2022-11-19 07:15:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_reserved [2022-11-19 07:15:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_fm_peb [2022-11-19 07:15:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_fm_peb [2022-11-19 07:15:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure in_wl_tree [2022-11-19 07:15:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure in_wl_tree [2022-11-19 07:15:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 07:15:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ai [2022-11-19 07:15:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ai [2022-11-19 07:15:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-19 07:15:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-19 07:15:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_peb [2022-11-19 07:15:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_peb [2022-11-19 07:15:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 07:15:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 07:15:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:15:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_ai [2022-11-19 07:15:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_ai [2022-11-19 07:15:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_fastmap [2022-11-19 07:15:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_fastmap [2022-11-19 07:15:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:15:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-19 07:15:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-19 07:15:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:15:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_aeb [2022-11-19 07:15:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_aeb [2022-11-19 07:15:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_av [2022-11-19 07:15:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_av [2022-11-19 07:15:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure write_leb [2022-11-19 07:15:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure write_leb [2022-11-19 07:15:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure rb_erase [2022-11-19 07:15:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_erase [2022-11-19 07:15:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-11-19 07:15:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-11-19 07:15:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_erase [2022-11-19 07:15:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_erase [2022-11-19 07:15:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_del [2022-11-19 07:15:39,224 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_del [2022-11-19 07:15:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure validate_ec_hdr [2022-11-19 07:15:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_ec_hdr [2022-11-19 07:15:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_compat [2022-11-19 07:15:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_compat [2022-11-19 07:15:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_gen [2022-11-19 07:15:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_gen [2022-11-19 07:15:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_av [2022-11-19 07:15:39,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_av [2022-11-19 07:15:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-19 07:15:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-19 07:15:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_device [2022-11-19 07:15:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_device [2022-11-19 07:15:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure rb_first [2022-11-19 07:15:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_first [2022-11-19 07:15:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_vid_hdr [2022-11-19 07:15:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_vid_hdr [2022-11-19 07:15:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2022-11-19 07:15:39,228 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2022-11-19 07:15:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_lock [2022-11-19 07:15:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_lock [2022-11-19 07:15:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path [2022-11-19 07:15:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path [2022-11-19 07:15:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_layout_vol [2022-11-19 07:15:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_layout_vol [2022-11-19 07:15:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 07:15:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 07:15:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure rb_insert_color [2022-11-19 07:15:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_insert_color [2022-11-19 07:15:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read [2022-11-19 07:15:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read [2022-11-19 07:15:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:15:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:15:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_change_vtbl_record [2022-11-19 07:15:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_change_vtbl_record [2022-11-19 07:15:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:15:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:15:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_write [2022-11-19 07:15:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_write [2022-11-19 07:15:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure uif_close [2022-11-19 07:15:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure uif_close [2022-11-19 07:15:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-19 07:15:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-19 07:15:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_remove_all [2022-11-19 07:15:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_remove_all [2022-11-19 07:15:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_power_cut [2022-11-19 07:15:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_power_cut [2022-11-19 07:15:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_atomic_leb_change [2022-11-19 07:15:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_atomic_leb_change [2022-11-19 07:15:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:15:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:15:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:15:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:15:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_ro_mode [2022-11-19 07:15:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_ro_mode [2022-11-19 07:15:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 07:15:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 07:15:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 07:15:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 07:15:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-11-19 07:15:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-11-19 07:15:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:15:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:15:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:15:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:15:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:15:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure scan_all [2022-11-19 07:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_all [2022-11-19 07:15:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_flash [2022-11-19 07:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_flash [2022-11-19 07:15:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_unlock [2022-11-19 07:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_unlock [2022-11-19 07:15:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2022-11-19 07:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2022-11-19 07:15:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_sync_erase [2022-11-19 07:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_sync_erase [2022-11-19 07:15:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:15:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:15:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure idx2vol_id [2022-11-19 07:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure idx2vol_id [2022-11-19 07:15:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-19 07:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-19 07:15:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-19 07:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-19 07:15:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure vol_attribute_show [2022-11-19 07:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_attribute_show [2022-11-19 07:15:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_peb_ec_hdr [2022-11-19 07:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_peb_ec_hdr [2022-11-19 07:15:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vol_info [2022-11-19 07:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vol_info [2022-11-19 07:15:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:15:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure get_peb_for_wl [2022-11-19 07:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure get_peb_for_wl [2022-11-19 07:15:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:15:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-19 07:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-19 07:15:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-19 07:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-19 07:15:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure blocking_notifier_call_chain [2022-11-19 07:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure blocking_notifier_call_chain [2022-11-19 07:15:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure create_vtbl [2022-11-19 07:15:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure create_vtbl [2022-11-19 07:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2022-11-19 07:15:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2022-11-19 07:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-19 07:15:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-19 07:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-19 07:15:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-19 07:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:15:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_in_wl_tree [2022-11-19 07:15:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_in_wl_tree [2022-11-19 07:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume [2022-11-19 07:15:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume [2022-11-19 07:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_pattern [2022-11-19 07:15:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_pattern [2022-11-19 07:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2022-11-19 07:15:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2022-11-19 07:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_write_leb [2022-11-19 07:15:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_write_leb [2022-11-19 07:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2022-11-19 07:15:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2022-11-19 07:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-19 07:15:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-19 07:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-19 07:15:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-19 07:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_fsync [2022-11-19 07:15:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_fsync [2022-11-19 07:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_mtd_device [2022-11-19 07:15:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mtd_device [2022-11-19 07:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_put_device [2022-11-19 07:15:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_put_device [2022-11-19 07:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:15:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure clear_update_marker [2022-11-19 07:15:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_update_marker [2022-11-19 07:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-19 07:15:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-19 07:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-19 07:15:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-19 07:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure scan_peb [2022-11-19 07:15:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_peb [2022-11-19 07:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-19 07:15:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-19 07:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr___0 [2022-11-19 07:15:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr___0 [2022-11-19 07:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___3 [2022-11-19 07:15:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___3 [2022-11-19 07:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_create [2022-11-19 07:15:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_create [2022-11-19 07:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:15:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___0 [2022-11-19 07:15:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___0 [2022-11-19 07:15:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr___4 [2022-11-19 07:15:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr___4 [2022-11-19 07:15:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_self_check_all_ff [2022-11-19 07:15:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_self_check_all_ff [2022-11-19 07:15:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-11-19 07:15:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-11-19 07:15:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2022-11-19 07:15:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2022-11-19 07:15:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_close_volume [2022-11-19 07:15:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_close_volume [2022-11-19 07:15:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_peb [2022-11-19 07:15:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_peb [2022-11-19 07:15:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 07:15:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 07:15:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-19 07:15:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-19 07:15:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:15:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:15:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-19 07:15:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-19 07:15:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-19 07:15:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-19 07:15:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_do_work [2022-11-19 07:15:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_do_work [2022-11-19 07:15:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:15:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:15:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:15:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:15:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_wear_leveling [2022-11-19 07:15:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_wear_leveling [2022-11-19 07:15:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-19 07:15:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-19 07:15:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_unlock [2022-11-19 07:15:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_unlock [2022-11-19 07:15:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:15:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:15:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_next_sqnum [2022-11-19 07:15:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_next_sqnum [2022-11-19 07:15:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_ec_hdr [2022-11-19 07:15:39,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_ec_hdr [2022-11-19 07:15:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_add_entry [2022-11-19 07:15:39,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_add_entry [2022-11-19 07:15:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure revoke_exclusive [2022-11-19 07:15:39,256 INFO L138 BoogieDeclarations]: Found implementation of procedure revoke_exclusive [2022-11-19 07:15:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:15:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:15:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_from_pdu [2022-11-19 07:15:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_from_pdu [2022-11-19 07:15:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure return_unused_pool_pebs [2022-11-19 07:15:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure return_unused_pool_pebs [2022-11-19 07:15:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown_work [2022-11-19 07:15:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown_work [2022-11-19 07:15:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:15:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:15:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-19 07:15:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-19 07:15:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vtbl_record [2022-11-19 07:15:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vtbl_record [2022-11-19 07:15:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 07:15:39,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 07:15:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure erase_worker [2022-11-19 07:15:39,259 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_worker [2022-11-19 07:15:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase [2022-11-19 07:15:39,259 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase [2022-11-19 07:15:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_add_to_av [2022-11-19 07:15:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_add_to_av [2022-11-19 07:15:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-11-19 07:15:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-11-19 07:15:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-19 07:15:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-19 07:15:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:15:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:15:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-19 07:15:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-19 07:15:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:15:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-19 07:15:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-19 07:15:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_volume [2022-11-19 07:15:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_volume [2022-11-19 07:15:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:15:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:15:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_lookup [2022-11-19 07:15:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_lookup [2022-11-19 07:15:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_getgeo [2022-11-19 07:15:39,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_getgeo [2022-11-19 07:15:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-19 07:15:39,263 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-19 07:15:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:15:39,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:15:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:15:39,264 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:15:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_flush [2022-11-19 07:15:39,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_flush [2022-11-19 07:15:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure wl_entry_destroy [2022-11-19 07:15:39,264 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_entry_destroy [2022-11-19 07:15:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure d_backing_inode [2022-11-19 07:15:39,265 INFO L138 BoogieDeclarations]: Found implementation of procedure d_backing_inode [2022-11-19 07:15:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_list [2022-11-19 07:15:39,265 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_list [2022-11-19 07:15:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_volumes [2022-11-19 07:15:39,265 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_volumes [2022-11-19 07:15:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure kill_volumes [2022-11-19 07:15:39,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_volumes [2022-11-19 07:15:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_is_bgt_disabled [2022-11-19 07:15:39,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_is_bgt_disabled [2022-11-19 07:15:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_notify_all [2022-11-19 07:15:39,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_notify_all [2022-11-19 07:15:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-19 07:15:39,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-19 07:15:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write [2022-11-19 07:15:39,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write [2022-11-19 07:15:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2022-11-19 07:15:39,267 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2022-11-19 07:15:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure scan_pool [2022-11-19 07:15:39,267 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_pool [2022-11-19 07:15:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 07:15:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 07:15:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure add_aeb [2022-11-19 07:15:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure add_aeb [2022-11-19 07:15:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_sanity_check [2022-11-19 07:15:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_sanity_check [2022-11-19 07:15:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_resize [2022-11-19 07:15:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_resize [2022-11-19 07:15:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-19 07:15:39,269 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-19 07:15:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2022-11-19 07:15:39,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2022-11-19 07:15:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit [2022-11-19 07:15:39,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit [2022-11-19 07:15:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure get_exclusive [2022-11-19 07:15:39,270 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exclusive [2022-11-19 07:15:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_major2num [2022-11-19 07:15:39,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_major2num [2022-11-19 07:15:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_volume_info [2022-11-19 07:15:39,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_volume_info [2022-11-19 07:15:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-19 07:15:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-19 07:15:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-19 07:15:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-19 07:15:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-19 07:15:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-19 07:15:39,271 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:15:39,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:15:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2022-11-19 07:15:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2022-11-19 07:15:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_volume_info [2022-11-19 07:15:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_volume_info [2022-11-19 07:15:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure tree_destroy [2022-11-19 07:15:39,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_destroy [2022-11-19 07:15:39,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:15:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_ec_hdr [2022-11-19 07:15:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_ec_hdr [2022-11-19 07:15:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure find_anchor_wl_entry [2022-11-19 07:15:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure find_anchor_wl_entry [2022-11-19 07:15:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtouint [2022-11-19 07:15:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtouint [2022-11-19 07:15:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure ubiblock_notify [2022-11-19 07:15:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ubiblock_notify [2022-11-19 07:15:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure wl_tree_add [2022-11-19 07:15:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_tree_add [2022-11-19 07:15:41,967 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:15:41,972 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:15:42,327 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:21:36,582 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:21:43,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:21:43,784 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:21:43,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:43 BoogieIcfgContainer [2022-11-19 07:21:43,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:21:43,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:21:43,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:21:43,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:21:43,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:15:25" (1/3) ... [2022-11-19 07:21:43,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b805f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:43, skipping insertion in model container [2022-11-19 07:21:43,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:15:36" (2/3) ... [2022-11-19 07:21:43,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8b805f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:43, skipping insertion in model container [2022-11-19 07:21:43,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:43" (3/3) ... [2022-11-19 07:21:43,810 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--mtd--ubi--ubi.ko-entry_point.cil.out.i [2022-11-19 07:21:43,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:21:43,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:21:44,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:21:44,012 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a21ca65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:21:44,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:21:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 7808 states, 4833 states have (on average 1.3604386509414443) internal successors, (6575), 5085 states have internal predecessors, (6575), 2705 states have call successors, (2705), 269 states have call predecessors, (2705), 268 states have return successors, (2675), 2640 states have call predecessors, (2675), 2675 states have call successors, (2675) [2022-11-19 07:21:44,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-11-19 07:21:44,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:44,095 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 35, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:44,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:21:44,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1960365404, now seen corresponding path program 1 times [2022-11-19 07:21:44,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:44,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380478898] [2022-11-19 07:21:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:45,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:21:45,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585586693] [2022-11-19 07:21:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:45,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:45,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:45,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:45,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:21:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:50,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 16351 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:21:50,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2022-11-19 07:21:50,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:50,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:50,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380478898] [2022-11-19 07:21:50,481 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:21:50,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585586693] [2022-11-19 07:21:50,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585586693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:50,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:50,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:50,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144166771] [2022-11-19 07:21:50,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:50,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:50,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:50,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:50,535 INFO L87 Difference]: Start difference. First operand has 7808 states, 4833 states have (on average 1.3604386509414443) internal successors, (6575), 5085 states have internal predecessors, (6575), 2705 states have call successors, (2705), 269 states have call predecessors, (2705), 268 states have return successors, (2675), 2640 states have call predecessors, (2675), 2675 states have call successors, (2675) Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:21:52,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:55,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:57,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:58,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:04,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:10,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:15,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:17,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:17,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:17,842 INFO L93 Difference]: Finished difference Result 23042 states and 35885 transitions. [2022-11-19 07:22:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:22:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 510 [2022-11-19 07:22:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:17,999 INFO L225 Difference]: With dead ends: 23042 [2022-11-19 07:22:17,999 INFO L226 Difference]: Without dead ends: 15220 [2022-11-19 07:22:18,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:22:18,100 INFO L413 NwaCegarLoop]: 15915 mSDtfsCounter, 11717 mSDsluCounter, 11000 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 26915 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:18,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11721 Valid, 26915 Invalid, 1581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 26.2s Time] [2022-11-19 07:22:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15220 states. [2022-11-19 07:22:19,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15220 to 15212. [2022-11-19 07:22:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15212 states, 9463 states have (on average 1.3550671034555637) internal successors, (12823), 9897 states have internal predecessors, (12823), 5221 states have call successors, (5221), 529 states have call predecessors, (5221), 527 states have return successors, (5221), 5147 states have call predecessors, (5221), 5219 states have call successors, (5221) [2022-11-19 07:22:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15212 states to 15212 states and 23265 transitions. [2022-11-19 07:22:20,076 INFO L78 Accepts]: Start accepts. Automaton has 15212 states and 23265 transitions. Word has length 510 [2022-11-19 07:22:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:20,080 INFO L495 AbstractCegarLoop]: Abstraction has 15212 states and 23265 transitions. [2022-11-19 07:22:20,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:22:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 15212 states and 23265 transitions. [2022-11-19 07:22:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-11-19 07:22:20,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:20,118 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 37, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:20,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:20,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:22:20,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:22:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:20,339 INFO L85 PathProgramCache]: Analyzing trace with hash 548431217, now seen corresponding path program 1 times [2022-11-19 07:22:20,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:20,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399834437] [2022-11-19 07:22:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6664 trivial. 0 not checked. [2022-11-19 07:22:24,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399834437] [2022-11-19 07:22:24,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399834437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:24,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:24,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:22:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606400635] [2022-11-19 07:22:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:24,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:22:24,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:24,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:22:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:22:24,030 INFO L87 Difference]: Start difference. First operand 15212 states and 23265 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-19 07:22:26,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:32,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:41,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:50,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:52,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:05,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:21,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:23,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:23,463 INFO L93 Difference]: Finished difference Result 46886 states and 71808 transitions. [2022-11-19 07:23:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:23:23,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 533 [2022-11-19 07:23:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:23,672 INFO L225 Difference]: With dead ends: 46886 [2022-11-19 07:23:23,672 INFO L226 Difference]: Without dead ends: 31745 [2022-11-19 07:23:23,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:23:23,758 INFO L413 NwaCegarLoop]: 14793 mSDtfsCounter, 12437 mSDsluCounter, 19601 mSDsCounter, 0 mSdLazyCounter, 7906 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12674 SdHoareTripleChecker+Valid, 34394 SdHoareTripleChecker+Invalid, 7915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7906 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:23,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12674 Valid, 34394 Invalid, 7915 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 7906 Invalid, 3 Unknown, 0 Unchecked, 57.8s Time] [2022-11-19 07:23:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31745 states. [2022-11-19 07:23:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31745 to 30261. [2022-11-19 07:23:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30261 states, 18837 states have (on average 1.3560545734458778) internal successors, (25544), 19705 states have internal predecessors, (25544), 10370 states have call successors, (10370), 1057 states have call predecessors, (10370), 1053 states have return successors, (10377), 10219 states have call predecessors, (10377), 10368 states have call successors, (10377) [2022-11-19 07:23:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30261 states to 30261 states and 46291 transitions. [2022-11-19 07:23:26,249 INFO L78 Accepts]: Start accepts. Automaton has 30261 states and 46291 transitions. Word has length 533 [2022-11-19 07:23:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:26,256 INFO L495 AbstractCegarLoop]: Abstraction has 30261 states and 46291 transitions. [2022-11-19 07:23:26,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-19 07:23:26,256 INFO L276 IsEmpty]: Start isEmpty. Operand 30261 states and 46291 transitions. [2022-11-19 07:23:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-11-19 07:23:26,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:26,279 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 37, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:26,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:23:26,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash -889123641, now seen corresponding path program 1 times [2022-11-19 07:23:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:26,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499938999] [2022-11-19 07:23:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6667 trivial. 0 not checked. [2022-11-19 07:23:27,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:27,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499938999] [2022-11-19 07:23:27,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499938999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:27,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:27,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:23:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336855735] [2022-11-19 07:23:27,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:27,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:27,877 INFO L87 Difference]: Start difference. First operand 30261 states and 46291 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:23:30,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:33,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:35,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:42,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:53,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:55,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:56,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:56,072 INFO L93 Difference]: Finished difference Result 90400 states and 138305 transitions. [2022-11-19 07:23:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:56,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 535 [2022-11-19 07:23:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:56,676 INFO L225 Difference]: With dead ends: 90400 [2022-11-19 07:23:56,676 INFO L226 Difference]: Without dead ends: 60210 [2022-11-19 07:23:56,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:56,843 INFO L413 NwaCegarLoop]: 14912 mSDtfsCounter, 11603 mSDsluCounter, 11152 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11610 SdHoareTripleChecker+Valid, 26064 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:56,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11610 Valid, 26064 Invalid, 1548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1543 Invalid, 4 Unknown, 0 Unchecked, 26.2s Time] [2022-11-19 07:23:56,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60210 states. [2022-11-19 07:24:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60210 to 60200. [2022-11-19 07:24:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60200 states, 37480 states have (on average 1.3565101387406617) internal successors, (50842), 39212 states have internal predecessors, (50842), 20622 states have call successors, (20622), 2105 states have call predecessors, (20622), 2097 states have return successors, (20643), 20321 states have call predecessors, (20643), 20620 states have call successors, (20643) [2022-11-19 07:24:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60200 states to 60200 states and 92107 transitions. [2022-11-19 07:24:01,536 INFO L78 Accepts]: Start accepts. Automaton has 60200 states and 92107 transitions. Word has length 535 [2022-11-19 07:24:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:01,538 INFO L495 AbstractCegarLoop]: Abstraction has 60200 states and 92107 transitions. [2022-11-19 07:24:01,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:24:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 60200 states and 92107 transitions. [2022-11-19 07:24:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-11-19 07:24:01,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:01,562 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 35, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:01,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:24:01,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:01,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1249699234, now seen corresponding path program 1 times [2022-11-19 07:24:01,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:24:01,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675162722] [2022-11-19 07:24:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:24:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6055 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6055 trivial. 0 not checked. [2022-11-19 07:24:03,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:03,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675162722] [2022-11-19 07:24:03,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675162722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:03,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:24:03,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:24:03,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556387144] [2022-11-19 07:24:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:03,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:24:03,320 INFO L87 Difference]: Start difference. First operand 60200 states and 92107 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:24:05,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:13,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:20,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:24,426 INFO L93 Difference]: Finished difference Result 126841 states and 193653 transitions. [2022-11-19 07:24:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:24:24,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 542 [2022-11-19 07:24:24,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:25,066 INFO L225 Difference]: With dead ends: 126841 [2022-11-19 07:24:25,066 INFO L226 Difference]: Without dead ends: 66712 [2022-11-19 07:24:25,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:24:25,369 INFO L413 NwaCegarLoop]: 12394 mSDtfsCounter, 11015 mSDsluCounter, 7348 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11019 SdHoareTripleChecker+Valid, 19742 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:25,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11019 Valid, 19742 Invalid, 1141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1138 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2022-11-19 07:24:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66712 states. [2022-11-19 07:24:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66712 to 66708. [2022-11-19 07:24:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66708 states, 41339 states have (on average 1.3519194949079563) internal successors, (55887), 43287 states have internal predecessors, (55887), 22864 states have call successors, (22864), 2510 states have call predecessors, (22864), 2504 states have return successors, (22890), 22567 states have call predecessors, (22890), 22862 states have call successors, (22890) [2022-11-19 07:24:30,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66708 states to 66708 states and 101641 transitions. [2022-11-19 07:24:30,290 INFO L78 Accepts]: Start accepts. Automaton has 66708 states and 101641 transitions. Word has length 542 [2022-11-19 07:24:30,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:30,291 INFO L495 AbstractCegarLoop]: Abstraction has 66708 states and 101641 transitions. [2022-11-19 07:24:30,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:24:30,291 INFO L276 IsEmpty]: Start isEmpty. Operand 66708 states and 101641 transitions. [2022-11-19 07:24:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-11-19 07:24:30,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:30,321 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 36, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:30,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:24:30,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1256012652, now seen corresponding path program 1 times [2022-11-19 07:24:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:24:30,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892478373] [2022-11-19 07:24:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:30,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:24:30,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:24:30,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601489742] [2022-11-19 07:24:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:30,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:24:30,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:24:30,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:24:30,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:24:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:35,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 16534 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:24:35,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6345 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2022-11-19 07:24:39,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:39,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:39,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892478373] [2022-11-19 07:24:39,485 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:24:39,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601489742] [2022-11-19 07:24:39,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601489742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:39,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:24:39,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:24:39,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488845311] [2022-11-19 07:24:39,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:39,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:39,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:39,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:24:39,489 INFO L87 Difference]: Start difference. First operand 66708 states and 101641 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:24:41,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:43,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:46,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:51,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:54,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:57,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:07,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:08,792 INFO L93 Difference]: Finished difference Result 189791 states and 289300 transitions. [2022-11-19 07:25:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 544 [2022-11-19 07:25:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:09,512 INFO L225 Difference]: With dead ends: 189791 [2022-11-19 07:25:09,512 INFO L226 Difference]: Without dead ends: 123164 [2022-11-19 07:25:10,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:10,004 INFO L413 NwaCegarLoop]: 13103 mSDtfsCounter, 11010 mSDsluCounter, 10410 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11014 SdHoareTripleChecker+Valid, 23513 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:10,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11014 Valid, 23513 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1334 Invalid, 5 Unknown, 0 Unchecked, 24.2s Time] [2022-11-19 07:25:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123164 states. [2022-11-19 07:25:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123164 to 123150. [2022-11-19 07:25:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123150 states, 76415 states have (on average 1.3529150035987698) internal successors, (103383), 79987 states have internal predecessors, (103383), 42156 states have call successors, (42156), 4592 states have call predecessors, (42156), 4578 states have return successors, (42210), 41607 states have call predecessors, (42210), 42154 states have call successors, (42210) [2022-11-19 07:25:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123150 states to 123150 states and 187749 transitions. [2022-11-19 07:25:18,797 INFO L78 Accepts]: Start accepts. Automaton has 123150 states and 187749 transitions. Word has length 544 [2022-11-19 07:25:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:18,798 INFO L495 AbstractCegarLoop]: Abstraction has 123150 states and 187749 transitions. [2022-11-19 07:25:18,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:25:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 123150 states and 187749 transitions. [2022-11-19 07:25:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-11-19 07:25:18,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:18,836 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 36, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:25:18,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:25:19,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:19,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash -259726826, now seen corresponding path program 1 times [2022-11-19 07:25:19,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:19,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631023894] [2022-11-19 07:25:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:19,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:20,017 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:25:20,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866965448] [2022-11-19 07:25:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:20,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:20,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:25:20,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:25:20,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:25:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:24,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 16555 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:25:24,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:25:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6345 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 5982 trivial. 0 not checked. [2022-11-19 07:25:25,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:25:25,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631023894] [2022-11-19 07:25:25,128 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:25:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866965448] [2022-11-19 07:25:25,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866965448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:25,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:25,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:25:25,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909174713] [2022-11-19 07:25:25,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:25,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:25:25,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:25,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:25:25,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:25:25,132 INFO L87 Difference]: Start difference. First operand 123150 states and 187749 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:25:27,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:30,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:32,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:34,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:41,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:45,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:58,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:00,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:02,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:03,601 INFO L93 Difference]: Finished difference Result 246243 states and 375415 transitions. [2022-11-19 07:26:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:26:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 543 [2022-11-19 07:26:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:04,569 INFO L225 Difference]: With dead ends: 246243 [2022-11-19 07:26:04,569 INFO L226 Difference]: Without dead ends: 123150 [2022-11-19 07:26:05,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:26:05,065 INFO L413 NwaCegarLoop]: 10517 mSDtfsCounter, 3 mSDsluCounter, 21028 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31545 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:05,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31545 Invalid, 2001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1992 Invalid, 7 Unknown, 0 Unchecked, 33.4s Time] [2022-11-19 07:26:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123150 states. [2022-11-19 07:26:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123150 to 123150. [2022-11-19 07:26:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123150 states, 76415 states have (on average 1.3527579663678597) internal successors, (103371), 79987 states have internal predecessors, (103371), 42156 states have call successors, (42156), 4592 states have call predecessors, (42156), 4578 states have return successors, (42210), 41607 states have call predecessors, (42210), 42154 states have call successors, (42210) [2022-11-19 07:26:14,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123150 states to 123150 states and 187737 transitions. [2022-11-19 07:26:14,263 INFO L78 Accepts]: Start accepts. Automaton has 123150 states and 187737 transitions. Word has length 543 [2022-11-19 07:26:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:14,264 INFO L495 AbstractCegarLoop]: Abstraction has 123150 states and 187737 transitions. [2022-11-19 07:26:14,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:26:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 123150 states and 187737 transitions. [2022-11-19 07:26:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-19 07:26:14,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:14,282 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 37, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:14,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:26:14,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99827de-1082-4d14-9c60-c56483270001/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:14,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:14,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:14,496 INFO L85 PathProgramCache]: Analyzing trace with hash 377752586, now seen corresponding path program 1 times [2022-11-19 07:26:14,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:14,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32579694] [2022-11-19 07:26:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:14,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat