./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-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI --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 d23ad328ad1b14f5ea514e4bbe064d6db9a0af91365ea0b59871d4844f775f13 --- 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-5e519f3 [2022-11-03 02:19:58,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:19:58,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:19:58,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:19:58,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:19:58,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:19:58,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:19:58,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:19:58,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:19:58,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:19:58,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:19:58,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:19:58,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:19:58,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:19:58,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:19:58,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:19:58,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:19:58,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:19:58,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:19:58,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:19:58,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:19:58,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:19:58,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:19:58,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:19:58,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:19:58,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:19:58,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:19:58,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:19:58,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:19:58,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:19:58,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:19:58,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:19:58,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:19:58,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:19:58,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:19:58,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:19:58,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:19:58,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:19:58,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:19:58,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:19:58,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:19:58,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:19:58,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:19:58,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:19:58,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:19:58,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:19:58,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:19:58,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:19:58,296 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:19:58,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:19:58,297 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:19:58,297 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:19:58,297 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:19:58,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:19:58,298 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:19:58,298 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:19:58,298 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:19:58,298 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:19:58,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:19:58,299 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:19:58,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:19:58,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:19:58,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:19:58,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:19:58,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:19:58,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:19:58,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:19:58,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:19:58,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:19:58,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:19:58,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:19:58,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:19:58,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:19:58,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:19:58,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:19:58,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:19:58,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:19:58,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:19:58,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:19:58,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:19:58,304 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_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d23ad328ad1b14f5ea514e4bbe064d6db9a0af91365ea0b59871d4844f775f13 [2022-11-03 02:19:58,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:19:58,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:19:58,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:19:58,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:19:58,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:19:58,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-03 02:19:58,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/data/76a020aae/20bb7548e6464b77883aaf98907f052a/FLAG3893931ca [2022-11-03 02:20:00,215 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:20:00,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-03 02:20:00,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/data/76a020aae/20bb7548e6464b77883aaf98907f052a/FLAG3893931ca [2022-11-03 02:20:00,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/data/76a020aae/20bb7548e6464b77883aaf98907f052a [2022-11-03 02:20:00,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:20:00,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:20:00,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:20:00,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:20:00,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:20:00,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:20:00" (1/1) ... [2022-11-03 02:20:00,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e359fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:00, skipping insertion in model container [2022-11-03 02:20:00,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:20:00" (1/1) ... [2022-11-03 02:20:00,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:20:00,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:20:05,630 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:05,634 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:05,636 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:05,636 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:05,638 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:06,862 WARN L230 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_1d0a47c5-66b7-44cc-910b-cd5e2d382417/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i[665471,665484] [2022-11-03 02:20:07,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:20:07,369 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:20:07,889 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:07,891 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:07,892 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:07,893 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:07,894 WARN L1543 CHandler]: Possible shadowing of function abort [2022-11-03 02:20:08,386 WARN L230 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_1d0a47c5-66b7-44cc-910b-cd5e2d382417/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i[665471,665484] [2022-11-03 02:20:08,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:20:08,638 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:20:08,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08 WrapperNode [2022-11-03 02:20:08,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:20:08,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:20:08,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:20:08,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:20:08,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:08,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:09,444 INFO L138 Inliner]: procedures = 574, calls = 7108, calls flagged for inlining = 215, calls inlined = 200, statements flattened = 17812 [2022-11-03 02:20:09,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:20:09,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:20:09,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:20:09,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:20:09,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:09,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:09,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:09,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:20:10,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:20:10,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:20:10,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:20:10,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (1/1) ... [2022-11-03 02:20:10,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:20:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:10,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:20:10,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0a47c5-66b7-44cc-910b-cd5e2d382417/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:20:10,536 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:20:10,536 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:20:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2022-11-03 02:20:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2022-11-03 02:20:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2022-11-03 02:20:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2022-11-03 02:20:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-03 02:20:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-03 02:20:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure init_async_submit [2022-11-03 02:20:10,538 INFO L138 BoogieDeclarations]: Found implementation of procedure init_async_submit [2022-11-03 02:20:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:20:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2022-11-03 02:20:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2022-11-03 02:20:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-03 02:20:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-03 02:20:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:20:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:20:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure flex_array_free [2022-11-03 02:20:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure flex_array_free [2022-11-03 02:20:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2022-11-03 02:20:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2022-11-03 02:20:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2022-11-03 02:20:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2022-11-03 02:20:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:20:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:20:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:20:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:20:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2022-11-03 02:20:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2022-11-03 02:20:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-11-03 02:20:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-11-03 02:20:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-03 02:20:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-03 02:20:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2022-11-03 02:20:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2022-11-03 02:20:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_list [2022-11-03 02:20:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_list [2022-11-03 02:20:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure blk_finish_plug [2022-11-03 02:20:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_finish_plug [2022-11-03 02:20:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 02:20:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 02:20:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2022-11-03 02:20:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2022-11-03 02:20:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-11-03 02:20:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-11-03 02:20:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 02:20:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 02:20:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-03 02:20:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-03 02:20:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-03 02:20:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-03 02:20:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:20:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:20:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2022-11-03 02:20:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2022-11-03 02:20:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_plug [2022-11-03 02:20:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_plug [2022-11-03 02:20:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2022-11-03 02:20:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2022-11-03 02:20:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:20:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:20:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2022-11-03 02:20:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2022-11-03 02:20:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-11-03 02:20:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-11-03 02:20:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2022-11-03 02:20:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2022-11-03 02:20:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-03 02:20:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-03 02:20:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure handle_stripe_clean_event [2022-11-03 02:20:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_stripe_clean_event [2022-11-03 02:20:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 02:20:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 02:20:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_endwrite [2022-11-03 02:20:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_endwrite [2022-11-03 02:20:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-03 02:20:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure async_memcpy [2022-11-03 02:20:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure async_memcpy [2022-11-03 02:20:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:20:10,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:20:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 02:20:10,561 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 02:20:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:20:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:20:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure __release_stripe [2022-11-03 02:20:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_stripe [2022-11-03 02:20:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2022-11-03 02:20:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2022-11-03 02:20:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:20:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2022-11-03 02:20:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2022-11-03 02:20:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2022-11-03 02:20:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2022-11-03 02:20:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-03 02:20:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-03 02:20:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2022-11-03 02:20:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2022-11-03 02:20:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-11-03 02:20:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-11-03 02:20:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure async_trigger_callback [2022-11-03 02:20:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure async_trigger_callback [2022-11-03 02:20:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2022-11-03 02:20:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2022-11-03 02:20:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:20:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:20:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2022-11-03 02:20:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2022-11-03 02:20:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:20:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:20:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:20:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2022-11-03 02:20:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2022-11-03 02:20:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:20:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:20:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:20:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2022-11-03 02:20:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2022-11-03 02:20:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2022-11-03 02:20:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2022-11-03 02:20:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:20:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure md_check_recovery [2022-11-03 02:20:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure md_check_recovery [2022-11-03 02:20:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2022-11-03 02:20:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2022-11-03 02:20:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash_locks_hash [2022-11-03 02:20:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash_locks_hash [2022-11-03 02:20:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2022-11-03 02:20:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2022-11-03 02:20:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2022-11-03 02:20:10,585 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2022-11-03 02:20:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_next_disk [2022-11-03 02:20:10,585 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_next_disk [2022-11-03 02:20:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_d0 [2022-11-03 02:20:10,585 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_d0 [2022-11-03 02:20:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 02:20:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 02:20:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure handle_stripe [2022-11-03 02:20:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_stripe [2022-11-03 02:20:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure status [2022-11-03 02:20:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2022-11-03 02:20:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 02:20:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 02:20:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2022-11-03 02:20:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2022-11-03 02:20:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:20:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:20:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2022-11-03 02:20:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2022-11-03 02:20:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_do_work [2022-11-03 02:20:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_do_work [2022-11-03 02:20:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-03 02:20:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-03 02:20:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-11-03 02:20:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-11-03 02:20:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 02:20:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 02:20:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:20:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:20:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:20:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-03 02:20:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-03 02:20:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2022-11-03 02:20:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2022-11-03 02:20:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2022-11-03 02:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2022-11-03 02:20:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:20:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2022-11-03 02:20:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2022-11-03 02:20:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:20:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_idx_to_slot [2022-11-03 02:20:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_idx_to_slot [2022-11-03 02:20:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2022-11-03 02:20:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2022-11-03 02:20:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_clear_badblocks [2022-11-03 02:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_clear_badblocks [2022-11-03 02:20:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:20:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:20:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2022-11-03 02:20:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2022-11-03 02:20:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:20:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2022-11-03 02:20:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2022-11-03 02:20:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2022-11-03 02:20:10,595 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2022-11-03 02:20:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_can_batch [2022-11-03 02:20:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_can_batch [2022-11-03 02:20:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure ops_run_check_pq [2022-11-03 02:20:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ops_run_check_pq [2022-11-03 02:20:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2022-11-03 02:20:10,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2022-11-03 02:20:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:20:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:20:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2022-11-03 02:20:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2022-11-03 02:20:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_set_badblocks [2022-11-03 02:20:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_set_badblocks [2022-11-03 02:20:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2022-11-03 02:20:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2022-11-03 02:20:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:20:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:20:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2022-11-03 02:20:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2022-11-03 02:20:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:20:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2022-11-03 02:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2022-11-03 02:20:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2022-11-03 02:20:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2022-11-03 02:20:10,599 INFO L130 BoogieDeclarations]: Found specification of procedure md_done_sync [2022-11-03 02:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure md_done_sync [2022-11-03 02:20:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure __find_stripe [2022-11-03 02:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_stripe [2022-11-03 02:20:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2022-11-03 02:20:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2022-11-03 02:20:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:20:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2022-11-03 02:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2022-11-03 02:20:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:20:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:20:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2022-11-03 02:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2022-11-03 02:20:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 02:20:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 02:20:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:20:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:20:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:20:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:20:10,609 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure handle_active_stripes [2022-11-03 02:20:10,609 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_active_stripes [2022-11-03 02:20:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-03 02:20:10,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-03 02:20:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2022-11-03 02:20:10,611 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2022-11-03 02:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-03 02:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:20:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:20:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:20:10,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:20:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2022-11-03 02:20:10,618 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2022-11-03 02:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure async_xor [2022-11-03 02:20:10,618 INFO L138 BoogieDeclarations]: Found implementation of procedure async_xor [2022-11-03 02:20:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure md_sync_acct [2022-11-03 02:20:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure md_sync_acct [2022-11-03 02:20:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2022-11-03 02:20:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2022-11-03 02:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:20:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2022-11-03 02:20:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2022-11-03 02:20:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2022-11-03 02:20:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2022-11-03 02:20:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:20:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2022-11-03 02:20:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2022-11-03 02:20:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure async_copy_data [2022-11-03 02:20:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure async_copy_data [2022-11-03 02:20:10,624 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2022-11-03 02:20:10,624 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2022-11-03 02:20:10,624 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 02:20:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 02:20:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-03 02:20:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-03 02:20:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2022-11-03 02:20:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2022-11-03 02:20:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:20:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:20:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2022-11-03 02:20:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2022-11-03 02:20:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure return_io [2022-11-03 02:20:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure return_io [2022-11-03 02:20:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-03 02:20:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-03 02:20:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2022-11-03 02:20:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2022-11-03 02:20:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:20:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:20:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:20:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:20:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:20:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:20:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure ops_complete_reconstruct [2022-11-03 02:20:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ops_complete_reconstruct [2022-11-03 02:20:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2022-11-03 02:20:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2022-11-03 02:20:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2022-11-03 02:20:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2022-11-03 02:20:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2022-11-03 02:20:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2022-11-03 02:20:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_takeover [2022-11-03 02:20:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_takeover [2022-11-03 02:20:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:20:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:20:10,631 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-11-03 02:20:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-11-03 02:20:10,631 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-03 02:20:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-03 02:20:10,631 INFO L130 BoogieDeclarations]: Found specification of procedure run [2022-11-03 02:20:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2022-11-03 02:20:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:20:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:20:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:20:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2022-11-03 02:20:10,632 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2022-11-03 02:20:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 02:20:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 02:20:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure break_stripe_batch_list [2022-11-03 02:20:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure break_stripe_batch_list [2022-11-03 02:20:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2022-11-03 02:20:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2022-11-03 02:20:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:20:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 02:20:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 02:20:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-03 02:20:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-03 02:20:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure bio_reset [2022-11-03 02:20:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_reset [2022-11-03 02:20:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2022-11-03 02:20:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2022-11-03 02:20:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-03 02:20:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-03 02:20:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:20:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2022-11-03 02:20:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2022-11-03 02:20:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2022-11-03 02:20:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2022-11-03 02:20:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2022-11-03 02:20:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2022-11-03 02:20:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_takeover [2022-11-03 02:20:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_takeover [2022-11-03 02:20:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:20:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:20:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:20:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:20:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:20:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:20:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:20:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:20:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2022-11-03 02:20:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2022-11-03 02:20:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2022-11-03 02:20:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2022-11-03 02:20:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-03 02:20:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-03 02:20:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_alloc [2022-11-03 02:20:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_alloc [2022-11-03 02:20:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure md_wait_for_blocked_rdev [2022-11-03 02:20:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wait_for_blocked_rdev [2022-11-03 02:20:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2022-11-03 02:20:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2022-11-03 02:20:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:20:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:20:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2022-11-03 02:20:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2022-11-03 02:20:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-11-03 02:20:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-11-03 02:20:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2022-11-03 02:20:10,642 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2022-11-03 02:20:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2022-11-03 02:20:10,642 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2022-11-03 02:20:10,642 INFO L130 BoogieDeclarations]: Found specification of procedure raid4_takeover [2022-11-03 02:20:10,642 INFO L138 BoogieDeclarations]: Found implementation of procedure raid4_takeover [2022-11-03 02:20:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2022-11-03 02:20:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2022-11-03 02:20:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-11-03 02:20:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-11-03 02:20:10,643 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2022-11-03 02:20:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2022-11-03 02:20:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:20:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:20:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2022-11-03 02:20:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2022-11-03 02:20:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-03 02:20:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-03 02:20:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2022-11-03 02:20:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2022-11-03 02:20:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:20:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:20:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2022-11-03 02:20:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2022-11-03 02:20:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure to_addr_conv [2022-11-03 02:20:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure to_addr_conv [2022-11-03 02:20:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:20:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_3 [2022-11-03 02:20:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_3 [2022-11-03 02:20:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-11-03 02:20:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-11-03 02:20:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_2 [2022-11-03 02:20:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_2 [2022-11-03 02:20:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-03 02:20:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-03 02:20:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2022-11-03 02:20:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2022-11-03 02:20:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_stripe [2022-11-03 02:20:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_stripe [2022-11-03 02:20:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2022-11-03 02:20:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2022-11-03 02:20:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_4 [2022-11-03 02:20:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_4 [2022-11-03 02:20:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2022-11-03 02:20:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2022-11-03 02:20:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:20:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:20:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:20:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:20:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure async_gen_syndrome [2022-11-03 02:20:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure async_gen_syndrome [2022-11-03 02:20:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2022-11-03 02:20:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2022-11-03 02:20:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_check_reshape [2022-11-03 02:20:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_check_reshape [2022-11-03 02:20:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-03 02:20:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-03 02:20:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2022-11-03 02:20:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2022-11-03 02:20:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:20:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:20:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2022-11-03 02:20:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2022-11-03 02:20:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reconstruction [2022-11-03 02:20:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reconstruction [2022-11-03 02:20:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2022-11-03 02:20:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2022-11-03 02:20:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:20:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:20:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-03 02:20:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-03 02:20:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:20:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:20:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-03 02:20:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-03 02:20:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2022-11-03 02:20:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2022-11-03 02:20:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 02:20:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 02:20:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2022-11-03 02:20:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2022-11-03 02:20:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2022-11-03 02:20:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2022-11-03 02:20:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2022-11-03 02:20:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2022-11-03 02:20:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_test_cpu [2022-11-03 02:20:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_test_cpu [2022-11-03 02:20:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2022-11-03 02:20:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2022-11-03 02:20:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 02:20:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 02:20:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2022-11-03 02:20:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2022-11-03 02:20:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:20:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:20:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-03 02:20:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-03 02:20:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2022-11-03 02:20:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2022-11-03 02:20:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2022-11-03 02:20:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2022-11-03 02:20:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2022-11-03 02:20:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2022-11-03 02:20:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure set_syndrome_sources [2022-11-03 02:20:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure set_syndrome_sources [2022-11-03 02:20:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-03 02:20:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-03 02:20:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-03 02:20:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-03 02:20:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-03 02:20:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-03 02:20:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure use_new_offset [2022-11-03 02:20:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure use_new_offset [2022-11-03 02:20:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:20:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:20:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-03 02:20:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-03 02:20:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-03 02:20:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-03 02:20:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:20:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:20:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_nested [2022-11-03 02:20:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_nested [2022-11-03 02:20:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 02:20:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 02:20:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2022-11-03 02:20:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2022-11-03 02:20:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure to_addr_page [2022-11-03 02:20:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure to_addr_page [2022-11-03 02:20:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:20:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure flex_array_get [2022-11-03 02:20:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure flex_array_get [2022-11-03 02:20:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-03 02:20:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-03 02:20:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_add [2022-11-03 02:20:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_add [2022-11-03 02:20:12,854 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:20:12,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:20:13,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:20:39,743 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:20:48,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:20:48,379 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:20:48,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:20:48 BoogieIcfgContainer [2022-11-03 02:20:48,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:20:48,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:20:48,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:20:48,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:20:48,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:20:00" (1/3) ... [2022-11-03 02:20:48,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7556c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:20:48, skipping insertion in model container [2022-11-03 02:20:48,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:08" (2/3) ... [2022-11-03 02:20:48,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7556c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:20:48, skipping insertion in model container [2022-11-03 02:20:48,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:20:48" (3/3) ... [2022-11-03 02:20:48,406 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-03 02:20:48,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:20:48,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:20:48,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:20:48,616 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;@1578491c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:20:48,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:20:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 5761 states, 3559 states have (on average 1.3897162124192188) internal successors, (4946), 3801 states have internal predecessors, (4946), 1963 states have call successors, (1963), 238 states have call predecessors, (1963), 237 states have return successors, (1951), 1910 states have call predecessors, (1951), 1951 states have call successors, (1951) [2022-11-03 02:20:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-11-03 02:20:48,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:48,695 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:48,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:48,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:48,702 INFO L85 PathProgramCache]: Analyzing trace with hash 811835427, now seen corresponding path program 1 times [2022-11-03 02:20:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:48,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136384818] [2022-11-03 02:20:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:48,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:20:50,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:50,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136384818] [2022-11-03 02:20:50,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136384818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:50,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:50,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:50,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492062750] [2022-11-03 02:20:50,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:50,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:50,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:50,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:51,000 INFO L87 Difference]: Start difference. First operand has 5761 states, 3559 states have (on average 1.3897162124192188) internal successors, (4946), 3801 states have internal predecessors, (4946), 1963 states have call successors, (1963), 238 states have call predecessors, (1963), 237 states have return successors, (1951), 1910 states have call predecessors, (1951), 1951 states have call successors, (1951) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:20:53,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:55,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:00,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:05,006 INFO L93 Difference]: Finished difference Result 16987 states and 26154 transitions. [2022-11-03 02:21:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:05,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 622 [2022-11-03 02:21:05,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:05,113 INFO L225 Difference]: With dead ends: 16987 [2022-11-03 02:21:05,113 INFO L226 Difference]: Without dead ends: 11172 [2022-11-03 02:21:05,154 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 [2022-11-03 02:21:05,157 INFO L413 NwaCegarLoop]: 10047 mSDtfsCounter, 8577 mSDsluCounter, 8841 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8586 SdHoareTripleChecker+Valid, 18211 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:05,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8586 Valid, 18211 Invalid, 1374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1370 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-03 02:21:05,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-11-03 02:21:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 11157. [2022-11-03 02:21:06,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11157 states, 6864 states have (on average 1.3764568764568765) internal successors, (9448), 7317 states have internal predecessors, (9448), 3822 states have call successors, (3822), 471 states have call predecessors, (3822), 470 states have return successors, (3824), 3733 states have call predecessors, (3824), 3817 states have call successors, (3824) [2022-11-03 02:21:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11157 states to 11157 states and 17094 transitions. [2022-11-03 02:21:06,139 INFO L78 Accepts]: Start accepts. Automaton has 11157 states and 17094 transitions. Word has length 622 [2022-11-03 02:21:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:06,148 INFO L495 AbstractCegarLoop]: Abstraction has 11157 states and 17094 transitions. [2022-11-03 02:21:06,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:21:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 11157 states and 17094 transitions. [2022-11-03 02:21:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-03 02:21:06,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:06,176 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:06,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:21:06,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:06,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1496071434, now seen corresponding path program 1 times [2022-11-03 02:21:06,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:06,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403025602] [2022-11-03 02:21:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:06,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:21:07,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:07,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403025602] [2022-11-03 02:21:07,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403025602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:07,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:07,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:21:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451142701] [2022-11-03 02:21:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:07,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:21:07,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:07,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:21:07,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:07,693 INFO L87 Difference]: Start difference. First operand 11157 states and 17094 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:21:09,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:12,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:16,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:18,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:21,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:25,376 INFO L93 Difference]: Finished difference Result 33127 states and 50781 transitions. [2022-11-03 02:21:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:25,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 625 [2022-11-03 02:21:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:25,550 INFO L225 Difference]: With dead ends: 33127 [2022-11-03 02:21:25,550 INFO L226 Difference]: Without dead ends: 22087 [2022-11-03 02:21:25,624 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 [2022-11-03 02:21:25,625 INFO L413 NwaCegarLoop]: 9907 mSDtfsCounter, 8390 mSDsluCounter, 8671 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8402 SdHoareTripleChecker+Valid, 17903 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:25,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8402 Valid, 17903 Invalid, 1376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1370 Invalid, 5 Unknown, 0 Unchecked, 16.6s Time] [2022-11-03 02:21:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22087 states. [2022-11-03 02:21:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22087 to 22072. [2022-11-03 02:21:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22072 states, 13585 states have (on average 1.3779168200220833) internal successors, (18719), 14489 states have internal predecessors, (18719), 7550 states have call successors, (7550), 937 states have call predecessors, (7550), 936 states have return successors, (7572), 7375 states have call predecessors, (7572), 7545 states have call successors, (7572) [2022-11-03 02:21:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22072 states to 22072 states and 33841 transitions. [2022-11-03 02:21:27,525 INFO L78 Accepts]: Start accepts. Automaton has 22072 states and 33841 transitions. Word has length 625 [2022-11-03 02:21:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:27,528 INFO L495 AbstractCegarLoop]: Abstraction has 22072 states and 33841 transitions. [2022-11-03 02:21:27,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:21:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 22072 states and 33841 transitions. [2022-11-03 02:21:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-03 02:21:27,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:27,550 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:27,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:21:27,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash -961483177, now seen corresponding path program 1 times [2022-11-03 02:21:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:27,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356438686] [2022-11-03 02:21:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:21:29,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:29,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356438686] [2022-11-03 02:21:29,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356438686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:29,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:29,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:21:29,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607172186] [2022-11-03 02:21:29,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:29,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:21:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:21:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:29,572 INFO L87 Difference]: Start difference. First operand 22072 states and 33841 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:21:31,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:34,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:37,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:39,847 INFO L93 Difference]: Finished difference Result 22551 states and 34449 transitions. [2022-11-03 02:21:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:39,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 625 [2022-11-03 02:21:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:39,974 INFO L225 Difference]: With dead ends: 22551 [2022-11-03 02:21:39,974 INFO L226 Difference]: Without dead ends: 22548 [2022-11-03 02:21:39,986 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 [2022-11-03 02:21:39,987 INFO L413 NwaCegarLoop]: 8138 mSDtfsCounter, 8503 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8512 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:39,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8512 Valid, 8701 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 762 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 02:21:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2022-11-03 02:21:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 22548. [2022-11-03 02:21:41,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22548 states, 13853 states have (on average 1.3745759041362882) internal successors, (19042), 14774 states have internal predecessors, (19042), 7687 states have call successors, (7687), 1007 states have call predecessors, (7687), 1007 states have return successors, (7717), 7509 states have call predecessors, (7717), 7683 states have call successors, (7717) [2022-11-03 02:21:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22548 states to 22548 states and 34446 transitions. [2022-11-03 02:21:41,888 INFO L78 Accepts]: Start accepts. Automaton has 22548 states and 34446 transitions. Word has length 625 [2022-11-03 02:21:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:41,889 INFO L495 AbstractCegarLoop]: Abstraction has 22548 states and 34446 transitions. [2022-11-03 02:21:41,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:21:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 22548 states and 34446 transitions. [2022-11-03 02:21:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-11-03 02:21:41,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:41,911 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:41,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:21:41,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:41,913 INFO L85 PathProgramCache]: Analyzing trace with hash 255651988, now seen corresponding path program 1 times [2022-11-03 02:21:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:41,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381099319] [2022-11-03 02:21:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:41,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:21:43,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:43,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381099319] [2022-11-03 02:21:43,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381099319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:43,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:43,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:21:43,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947004600] [2022-11-03 02:21:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:43,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:21:43,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:21:43,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:43,261 INFO L87 Difference]: Start difference. First operand 22548 states and 34446 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:21:45,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:48,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:51,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:53,840 INFO L93 Difference]: Finished difference Result 22570 states and 34464 transitions. [2022-11-03 02:21:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:53,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 626 [2022-11-03 02:21:53,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:53,968 INFO L225 Difference]: With dead ends: 22570 [2022-11-03 02:21:53,968 INFO L226 Difference]: Without dead ends: 22567 [2022-11-03 02:21:53,982 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 [2022-11-03 02:21:53,983 INFO L413 NwaCegarLoop]: 8136 mSDtfsCounter, 8480 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8490 SdHoareTripleChecker+Valid, 8716 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:53,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8490 Valid, 8716 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 772 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 02:21:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22567 states. [2022-11-03 02:21:56,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22567 to 22567. [2022-11-03 02:21:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22567 states, 13864 states have (on average 1.3742065781881132) internal successors, (19052), 14786 states have internal predecessors, (19052), 7686 states have call successors, (7686), 1014 states have call predecessors, (7686), 1016 states have return successors, (7723), 7509 states have call predecessors, (7723), 7683 states have call successors, (7723) [2022-11-03 02:21:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22567 states to 22567 states and 34461 transitions. [2022-11-03 02:21:56,291 INFO L78 Accepts]: Start accepts. Automaton has 22567 states and 34461 transitions. Word has length 626 [2022-11-03 02:21:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:56,293 INFO L495 AbstractCegarLoop]: Abstraction has 22567 states and 34461 transitions. [2022-11-03 02:21:56,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:21:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 22567 states and 34461 transitions. [2022-11-03 02:21:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-11-03 02:21:56,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:56,303 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:56,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:21:56,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:56,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1930276827, now seen corresponding path program 1 times [2022-11-03 02:21:56,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:56,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260060924] [2022-11-03 02:21:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:56,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:21:57,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:57,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260060924] [2022-11-03 02:21:57,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260060924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:57,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:57,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:21:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772108249] [2022-11-03 02:21:57,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:57,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:21:57,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:57,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:21:57,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:21:57,571 INFO L87 Difference]: Start difference. First operand 22567 states and 34461 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:21:59,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:02,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:07,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:09,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:14,286 INFO L93 Difference]: Finished difference Result 66723 states and 102025 transitions. [2022-11-03 02:22:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:22:14,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 629 [2022-11-03 02:22:14,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:14,701 INFO L225 Difference]: With dead ends: 66723 [2022-11-03 02:22:14,701 INFO L226 Difference]: Without dead ends: 44273 [2022-11-03 02:22:14,833 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 [2022-11-03 02:22:14,835 INFO L413 NwaCegarLoop]: 9922 mSDtfsCounter, 8350 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8359 SdHoareTripleChecker+Valid, 17914 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:14,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8359 Valid, 17914 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1375 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2022-11-03 02:22:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44273 states. [2022-11-03 02:22:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44273 to 44257. [2022-11-03 02:22:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44257 states, 27200 states have (on average 1.3763235294117646) internal successors, (37436), 29026 states have internal predecessors, (37436), 15102 states have call successors, (15102), 1950 states have call predecessors, (15102), 1954 states have return successors, (15179), 14753 states have call predecessors, (15179), 15099 states have call successors, (15179) [2022-11-03 02:22:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44257 states to 44257 states and 67717 transitions. [2022-11-03 02:22:19,391 INFO L78 Accepts]: Start accepts. Automaton has 44257 states and 67717 transitions. Word has length 629 [2022-11-03 02:22:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:19,393 INFO L495 AbstractCegarLoop]: Abstraction has 44257 states and 67717 transitions. [2022-11-03 02:22:19,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:22:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44257 states and 67717 transitions. [2022-11-03 02:22:19,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-11-03 02:22:19,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:19,407 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:19,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:22:19,407 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash -667858694, now seen corresponding path program 1 times [2022-11-03 02:22:19,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:19,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027824920] [2022-11-03 02:22:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:19,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:22:20,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:20,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027824920] [2022-11-03 02:22:20,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027824920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:20,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:20,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:22:20,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200860477] [2022-11-03 02:22:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:20,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:22:20,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:22:20,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:22:20,784 INFO L87 Difference]: Start difference. First operand 44257 states and 67717 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:22:22,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:25,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:28,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:31,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:34,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:34,169 INFO L93 Difference]: Finished difference Result 44259 states and 67718 transitions. [2022-11-03 02:22:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:22:34,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 627 [2022-11-03 02:22:34,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:34,423 INFO L225 Difference]: With dead ends: 44259 [2022-11-03 02:22:34,423 INFO L226 Difference]: Without dead ends: 44256 [2022-11-03 02:22:34,451 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 [2022-11-03 02:22:34,451 INFO L413 NwaCegarLoop]: 8134 mSDtfsCounter, 8468 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8480 SdHoareTripleChecker+Valid, 8719 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:34,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8480 Valid, 8719 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 772 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2022-11-03 02:22:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44256 states. [2022-11-03 02:22:37,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44256 to 44256. [2022-11-03 02:22:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44256 states, 27200 states have (on average 1.3762867647058823) internal successors, (37435), 29025 states have internal predecessors, (37435), 15101 states have call successors, (15101), 1950 states have call predecessors, (15101), 1954 states have return successors, (15179), 14753 states have call predecessors, (15179), 15099 states have call successors, (15179) [2022-11-03 02:22:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44256 states to 44256 states and 67715 transitions. [2022-11-03 02:22:38,065 INFO L78 Accepts]: Start accepts. Automaton has 44256 states and 67715 transitions. Word has length 627 [2022-11-03 02:22:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:38,066 INFO L495 AbstractCegarLoop]: Abstraction has 44256 states and 67715 transitions. [2022-11-03 02:22:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:22:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 44256 states and 67715 transitions. [2022-11-03 02:22:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-11-03 02:22:38,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:38,077 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:38,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:22:38,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:38,078 INFO L85 PathProgramCache]: Analyzing trace with hash 740591181, now seen corresponding path program 1 times [2022-11-03 02:22:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:38,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811689274] [2022-11-03 02:22:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:38,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:22:39,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811689274] [2022-11-03 02:22:39,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811689274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:39,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:39,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:22:39,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011936043] [2022-11-03 02:22:39,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:39,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:22:39,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:39,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:22:39,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:22:39,308 INFO L87 Difference]: Start difference. First operand 44256 states and 67715 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:22:41,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:43,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:49,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:52,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:58,558 INFO L93 Difference]: Finished difference Result 131585 states and 201491 transitions. [2022-11-03 02:22:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:22:58,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 630 [2022-11-03 02:22:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:59,126 INFO L225 Difference]: With dead ends: 131585 [2022-11-03 02:22:59,126 INFO L226 Difference]: Without dead ends: 87446 [2022-11-03 02:22:59,606 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 [2022-11-03 02:22:59,608 INFO L413 NwaCegarLoop]: 10026 mSDtfsCounter, 8532 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8541 SdHoareTripleChecker+Valid, 17846 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:59,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8541 Valid, 17846 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1383 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-03 02:22:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87446 states. [2022-11-03 02:23:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87446 to 87435. [2022-11-03 02:23:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87435 states, 53779 states have (on average 1.3775079491995017) internal successors, (74081), 57388 states have internal predecessors, (74081), 29846 states have call successors, (29846), 3801 states have call predecessors, (29846), 3809 states have return successors, (30004), 29162 states have call predecessors, (30004), 29844 states have call successors, (30004) [2022-11-03 02:23:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87435 states to 87435 states and 133931 transitions. [2022-11-03 02:23:05,851 INFO L78 Accepts]: Start accepts. Automaton has 87435 states and 133931 transitions. Word has length 630 [2022-11-03 02:23:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:05,853 INFO L495 AbstractCegarLoop]: Abstraction has 87435 states and 133931 transitions. [2022-11-03 02:23:05,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 02:23:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 87435 states and 133931 transitions. [2022-11-03 02:23:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-03 02:23:05,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:05,866 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:05,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:23:05,866 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 768086103, now seen corresponding path program 1 times [2022-11-03 02:23:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:05,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536675864] [2022-11-03 02:23:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:05,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-03 02:23:07,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:07,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536675864] [2022-11-03 02:23:07,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536675864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:07,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:07,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182082145] [2022-11-03 02:23:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:07,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:07,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:07,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:07,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:07,367 INFO L87 Difference]: Start difference. First operand 87435 states and 133931 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-03 02:23:09,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:12,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:16,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:22,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:25,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:35,503 INFO L93 Difference]: Finished difference Result 173275 states and 265856 transitions. [2022-11-03 02:23:35,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:35,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 628 [2022-11-03 02:23:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.