./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba --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 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad --- 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-b5237d8 [2022-11-22 02:20:24,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:20:24,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:20:24,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:20:24,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:20:24,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:20:24,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:20:24,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:20:24,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:20:24,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:20:24,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:20:24,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:20:24,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:20:24,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:20:24,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:20:24,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:20:24,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:20:24,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:20:24,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:20:24,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:20:24,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:20:24,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:20:24,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:20:24,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:20:24,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:20:24,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:20:24,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:20:24,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:20:24,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:20:24,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:20:24,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:20:24,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:20:24,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:20:24,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:20:24,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:20:24,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:20:24,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:20:24,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:20:24,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:20:24,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:20:24,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:20:24,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:20:24,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:20:24,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:20:24,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:20:24,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:20:24,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:20:24,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:20:24,542 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:20:24,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:20:24,543 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:20:24,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:20:24,544 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:20:24,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:20:24,545 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:20:24,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:20:24,545 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:20:24,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:20:24,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:20:24,546 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:20:24,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:20:24,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:20:24,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:20:24,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:20:24,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:20:24,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:20:24,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:20:24,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:20:24,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:20:24,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:20:24,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:20:24,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:20:24,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:20:24,551 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:20:24,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:20:24,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:20:24,551 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:20:24,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:20:24,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:20:24,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:20:24,553 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_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad [2022-11-22 02:20:24,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:20:24,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:20:24,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:20:24,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:20:24,891 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:20:24,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-11-22 02:20:28,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:20:28,900 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:20:28,900 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-11-22 02:20:28,941 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/data/946488468/6f72d0383e2f4fcfaa7c33d4ad7305da/FLAG13bbd2ca8 [2022-11-22 02:20:28,965 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/data/946488468/6f72d0383e2f4fcfaa7c33d4ad7305da [2022-11-22 02:20:28,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:20:28,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:20:28,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:20:28,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:20:28,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:20:28,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:28" (1/1) ... [2022-11-22 02:20:28,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcffd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:28, skipping insertion in model container [2022-11-22 02:20:28,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:28" (1/1) ... [2022-11-22 02:20:28,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:20:29,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:20:30,483 WARN L237 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_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-11-22 02:20:30,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:20:30,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:20:30,969 WARN L237 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_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-11-22 02:20:30,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:20:31,125 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:20:31,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31 WrapperNode [2022-11-22 02:20:31,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:20:31,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:20:31,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:20:31,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:20:31,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,277 INFO L138 Inliner]: procedures = 151, calls = 793, calls flagged for inlining = 67, calls inlined = 53, statements flattened = 1744 [2022-11-22 02:20:31,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:20:31,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:20:31,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:20:31,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:20:31,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:20:31,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:20:31,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:20:31,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:20:31,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (1/1) ... [2022-11-22 02:20:31,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:20:31,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:31,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:20:31,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:20:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2022-11-22 02:20:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2022-11-22 02:20:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2022-11-22 02:20:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2022-11-22 02:20:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:20:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:20:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:20:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:20:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:20:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:20:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:20:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:20:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2022-11-22 02:20:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2022-11-22 02:20:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2022-11-22 02:20:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2022-11-22 02:20:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:20:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:20:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:20:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:20:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:20:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:20:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-22 02:20:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-22 02:20:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:20:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:20:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-22 02:20:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-22 02:20:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:20:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 02:20:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 02:20:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-22 02:20:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-22 02:20:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-11-22 02:20:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-11-22 02:20:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:20:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:20:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2022-11-22 02:20:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2022-11-22 02:20:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-22 02:20:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-22 02:20:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:20:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:20:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:20:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-22 02:20:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-22 02:20:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-22 02:20:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-22 02:20:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-11-22 02:20:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-11-22 02:20:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:20:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2022-11-22 02:20:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2022-11-22 02:20:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-22 02:20:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-22 02:20:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:20:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:20:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2022-11-22 02:20:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2022-11-22 02:20:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-22 02:20:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-22 02:20:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2022-11-22 02:20:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2022-11-22 02:20:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:20:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2022-11-22 02:20:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2022-11-22 02:20:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 02:20:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 02:20:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:20:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:20:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2022-11-22 02:20:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2022-11-22 02:20:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:20:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:20:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2022-11-22 02:20:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2022-11-22 02:20:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:20:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:20:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:20:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2022-11-22 02:20:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2022-11-22 02:20:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:20:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:20:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:20:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2022-11-22 02:20:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2022-11-22 02:20:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2022-11-22 02:20:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2022-11-22 02:20:32,091 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:20:32,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:20:32,325 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:20:33,584 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:20:33,838 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:20:33,839 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:20:33,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:33 BoogieIcfgContainer [2022-11-22 02:20:33,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:20:33,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:20:33,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:20:33,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:20:33,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:20:28" (1/3) ... [2022-11-22 02:20:33,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4918476a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:33, skipping insertion in model container [2022-11-22 02:20:33,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:31" (2/3) ... [2022-11-22 02:20:33,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4918476a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:33, skipping insertion in model container [2022-11-22 02:20:33,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:33" (3/3) ... [2022-11-22 02:20:33,857 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-11-22 02:20:33,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:20:33,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:20:34,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:20:34,015 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;@af44ea6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:20:34,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:20:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 468 states, 299 states have (on average 1.3645484949832776) internal successors, (408), 310 states have internal predecessors, (408), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2022-11-22 02:20:34,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 02:20:34,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:34,059 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:34,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1430246001, now seen corresponding path program 1 times [2022-11-22 02:20:34,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:34,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449149668] [2022-11-22 02:20:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-22 02:20:35,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:35,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449149668] [2022-11-22 02:20:35,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449149668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:35,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:35,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:20:35,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94454868] [2022-11-22 02:20:35,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:35,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:20:35,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:35,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:20:35,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:20:35,159 INFO L87 Difference]: Start difference. First operand has 468 states, 299 states have (on average 1.3645484949832776) internal successors, (408), 310 states have internal predecessors, (408), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 02:20:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:36,137 INFO L93 Difference]: Finished difference Result 1316 states and 1887 transitions. [2022-11-22 02:20:36,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:20:36,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2022-11-22 02:20:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:36,183 INFO L225 Difference]: With dead ends: 1316 [2022-11-22 02:20:36,194 INFO L226 Difference]: Without dead ends: 869 [2022-11-22 02:20:36,204 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 [2022-11-22 02:20:36,208 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 586 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:36,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1291 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:20:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-22 02:20:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 866. [2022-11-22 02:20:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 566 states have (on average 1.3568904593639577) internal successors, (768), 575 states have internal predecessors, (768), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-11-22 02:20:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1234 transitions. [2022-11-22 02:20:36,340 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1234 transitions. Word has length 146 [2022-11-22 02:20:36,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:36,341 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1234 transitions. [2022-11-22 02:20:36,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 02:20:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1234 transitions. [2022-11-22 02:20:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-22 02:20:36,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:36,346 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:36,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:20:36,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:36,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1616489580, now seen corresponding path program 1 times [2022-11-22 02:20:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:36,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289009631] [2022-11-22 02:20:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:36,828 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-11-22 02:20:36,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:36,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289009631] [2022-11-22 02:20:36,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289009631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:36,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:36,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:20:36,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357757917] [2022-11-22 02:20:36,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:36,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:20:36,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:36,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:20:36,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:20:36,835 INFO L87 Difference]: Start difference. First operand 866 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 02:20:37,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:37,439 INFO L93 Difference]: Finished difference Result 1698 states and 2419 transitions. [2022-11-22 02:20:37,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:20:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 149 [2022-11-22 02:20:37,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:37,447 INFO L225 Difference]: With dead ends: 1698 [2022-11-22 02:20:37,447 INFO L226 Difference]: Without dead ends: 865 [2022-11-22 02:20:37,453 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 [2022-11-22 02:20:37,454 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:37,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 582 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:20:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-11-22 02:20:37,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-11-22 02:20:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 565 states have (on average 1.352212389380531) internal successors, (764), 574 states have internal predecessors, (764), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-11-22 02:20:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1230 transitions. [2022-11-22 02:20:37,537 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1230 transitions. Word has length 149 [2022-11-22 02:20:37,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:37,541 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1230 transitions. [2022-11-22 02:20:37,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 02:20:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1230 transitions. [2022-11-22 02:20:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-22 02:20:37,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:37,555 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:37,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:20:37,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:37,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash -713824847, now seen corresponding path program 1 times [2022-11-22 02:20:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:37,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292279119] [2022-11-22 02:20:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-11-22 02:20:37,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:37,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292279119] [2022-11-22 02:20:37,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292279119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:37,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:37,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:20:37,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575803474] [2022-11-22 02:20:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:37,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:20:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:20:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:20:37,968 INFO L87 Difference]: Start difference. First operand 865 states and 1230 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:20:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:38,818 INFO L93 Difference]: Finished difference Result 1410 states and 1980 transitions. [2022-11-22 02:20:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:20:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2022-11-22 02:20:38,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:38,830 INFO L225 Difference]: With dead ends: 1410 [2022-11-22 02:20:38,830 INFO L226 Difference]: Without dead ends: 1405 [2022-11-22 02:20:38,832 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 [2022-11-22 02:20:38,833 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 384 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:38,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1198 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:20:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-11-22 02:20:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2022-11-22 02:20:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 926 states have (on average 1.3596112311015118) internal successors, (1259), 937 states have internal predecessors, (1259), 359 states have call successors, (359), 120 states have call predecessors, (359), 119 states have return successors, (357), 355 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-22 02:20:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1975 transitions. [2022-11-22 02:20:38,961 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1975 transitions. Word has length 191 [2022-11-22 02:20:38,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:38,962 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1975 transitions. [2022-11-22 02:20:38,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:20:38,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1975 transitions. [2022-11-22 02:20:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-22 02:20:38,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:38,970 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:38,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:20:38,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1491856612, now seen corresponding path program 1 times [2022-11-22 02:20:38,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:38,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751357342] [2022-11-22 02:20:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-22 02:20:40,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:40,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751357342] [2022-11-22 02:20:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751357342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:40,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:40,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:20:40,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062391061] [2022-11-22 02:20:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:40,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:20:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:20:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:20:40,602 INFO L87 Difference]: Start difference. First operand 1405 states and 1975 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:20:42,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:42,845 INFO L93 Difference]: Finished difference Result 2265 states and 3232 transitions. [2022-11-22 02:20:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:20:42,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 207 [2022-11-22 02:20:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:42,862 INFO L225 Difference]: With dead ends: 2265 [2022-11-22 02:20:42,862 INFO L226 Difference]: Without dead ends: 2260 [2022-11-22 02:20:42,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:20:42,866 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 888 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:42,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1303 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:20:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-11-22 02:20:43,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1949. [2022-11-22 02:20:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1291 states have (on average 1.3632842757552286) internal successors, (1760), 1304 states have internal predecessors, (1760), 484 states have call successors, (484), 174 states have call predecessors, (484), 173 states have return successors, (482), 480 states have call predecessors, (482), 482 states have call successors, (482) [2022-11-22 02:20:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2726 transitions. [2022-11-22 02:20:43,061 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2726 transitions. Word has length 207 [2022-11-22 02:20:43,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:43,062 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2726 transitions. [2022-11-22 02:20:43,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:20:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2726 transitions. [2022-11-22 02:20:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-22 02:20:43,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:43,073 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:43,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:20:43,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:43,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash -170572227, now seen corresponding path program 1 times [2022-11-22 02:20:43,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:43,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569523314] [2022-11-22 02:20:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:43,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-22 02:20:44,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:44,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569523314] [2022-11-22 02:20:44,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569523314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:20:44,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025608723] [2022-11-22 02:20:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:44,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:44,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:44,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:44,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:20:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:45,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 02:20:45,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:20:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-22 02:20:45,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:20:45,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025608723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:45,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:20:45,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-22 02:20:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11832582] [2022-11-22 02:20:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:45,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:20:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:45,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:20:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:20:45,471 INFO L87 Difference]: Start difference. First operand 1949 states and 2726 transitions. Second operand has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 02:20:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:47,864 INFO L93 Difference]: Finished difference Result 3904 states and 5483 transitions. [2022-11-22 02:20:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:20:47,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 218 [2022-11-22 02:20:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:47,875 INFO L225 Difference]: With dead ends: 3904 [2022-11-22 02:20:47,875 INFO L226 Difference]: Without dead ends: 1955 [2022-11-22 02:20:47,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:20:47,886 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:47,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2821 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:20:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2022-11-22 02:20:48,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1955. [2022-11-22 02:20:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1955 states, 1297 states have (on average 1.361603700848111) internal successors, (1766), 1310 states have internal predecessors, (1766), 484 states have call successors, (484), 174 states have call predecessors, (484), 173 states have return successors, (482), 480 states have call predecessors, (482), 482 states have call successors, (482) [2022-11-22 02:20:48,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2732 transitions. [2022-11-22 02:20:48,038 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2732 transitions. Word has length 218 [2022-11-22 02:20:48,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:48,038 INFO L495 AbstractCegarLoop]: Abstraction has 1955 states and 2732 transitions. [2022-11-22 02:20:48,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 02:20:48,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2732 transitions. [2022-11-22 02:20:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-22 02:20:48,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:48,048 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:48,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:20:48,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:48,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:20:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:48,260 INFO L85 PathProgramCache]: Analyzing trace with hash -189823776, now seen corresponding path program 1 times [2022-11-22 02:20:48,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:48,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914286397] [2022-11-22 02:20:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:48,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-22 02:20:49,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:49,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914286397] [2022-11-22 02:20:49,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914286397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:20:49,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746377815] [2022-11-22 02:20:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:49,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:49,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:49,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1d62e3-70a6-45bf-9167-efc57a8ed6d7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:20:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:50,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 02:20:50,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:20:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-11-22 02:20:50,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:20:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-11-22 02:20:51,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746377815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:20:51,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10661596] [2022-11-22 02:20:51,286 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-11-22 02:20:51,286 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:20:51,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:20:51,300 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:20:51,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:20:53,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:20:53,546 INFO L217 Elim1Store]: Index analysis took 1197 ms [2022-11-22 02:22:44,806 WARN L233 SmtUtils]: Spent 1.85m on a formula simplification. DAG size of input: 3129 DAG size of output: 1180 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:22:44,823 INFO L321 Elim1Store]: treesize reduction 20731, result has 12.0 percent of original size [2022-11-22 02:22:44,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 72 select indices, 72 select index equivalence classes, 2578 disjoint index pairs (out of 2556 index pairs), introduced 72 new quantified variables, introduced 81 case distinctions, treesize of input 397 treesize of output 3060 [2022-11-22 02:22:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:52,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:53,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:54,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:57,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:58,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:59,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:22:59,803 INFO L217 Elim1Store]: Index analysis took 11653 ms [2022-11-22 02:26:25,788 WARN L233 SmtUtils]: Spent 3.43m on a formula simplification. DAG size of input: 4661 DAG size of output: 1880 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:26:25,797 INFO L321 Elim1Store]: treesize reduction 26723, result has 11.7 percent of original size [2022-11-22 02:26:25,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 84 select indices, 84 select index equivalence classes, 2650 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 927 case distinctions, treesize of input 677 treesize of output 4017 [2022-11-22 02:26:53,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:26:53,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:26:53,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-22 02:27:00,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:00,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 83 select indices, 83 select index equivalence classes, 3414 disjoint index pairs (out of 3403 index pairs), introduced 83 new quantified variables, introduced 0 case distinctions, treesize of input 416 treesize of output 250 [2022-11-22 02:27:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:01,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 84 select indices, 84 select index equivalence classes, 3486 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 253 [2022-11-22 02:27:26,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:26,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 83 select indices, 83 select index equivalence classes, 3414 disjoint index pairs (out of 3403 index pairs), introduced 83 new quantified variables, introduced 0 case distinctions, treesize of input 416 treesize of output 250 [2022-11-22 02:27:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:28,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 84 select indices, 84 select index equivalence classes, 3486 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 253 [2022-11-22 02:27:46,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:27:46,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:27:47,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:27:57,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:27:58,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:27:58,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:28:16,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:28:17,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:28:18,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:28:26,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:28:27,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:28:27,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:31:51,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:31:51,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:31:51,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:31:51,920 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-22 02:31:51,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 56 [2022-11-22 02:31:51,948 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:31:51,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-22 02:31:51,975 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:31:51,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-22 02:31:52,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 02:31:52,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 02:31:52,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:32:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:11,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-11-22 02:32:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:32:12,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-11-22 02:32:12,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:32:15,693 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:32:15,703 WARN L207 Elim1Store]: Array PQE input equivalent to false