./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:09:30,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:09:30,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:09:30,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:09:30,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:09:30,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:09:30,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:09:30,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:09:30,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:09:30,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:09:30,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:09:30,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:09:30,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:09:30,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:09:30,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:09:30,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:09:30,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:09:30,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:09:30,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:09:30,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:09:30,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:09:30,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:09:30,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:09:30,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:09:30,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:09:30,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:09:30,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:09:30,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:09:30,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:09:30,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:09:30,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:09:30,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:09:30,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:09:30,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:09:30,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:09:30,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:09:30,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:09:30,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:09:30,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:09:30,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:09:30,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:09:30,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:09:30,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:09:30,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:09:30,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:09:30,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:09:30,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:09:30,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:09:30,598 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:09:30,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:09:30,598 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:09:30,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:09:30,598 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:09:30,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:09:30,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:09:30,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:09:30,599 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:09:30,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:09:30,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:09:30,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:09:30,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:09:30,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:09:30,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:09:30,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:09:30,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:09:30,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:09:30,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:09:30,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:09:30,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:09:30,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:09:30,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:09:30,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:30,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:09:30,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:09:30,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:09:30,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:09:30,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:09:30,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:09:30,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:09:30,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:09:30,605 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_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a9a34d40babef5c6ef3662e22f59267f6e49b89d364b5566e6d47ef433b5da [2022-11-03 02:09:30,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:09:30,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:09:30,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:09:30,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:09:30,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:09:30,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-11-03 02:09:31,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/data/822d4fdfa/c87bf3ae913245dabd9b619f003bd92d/FLAG312d35268 [2022-11-03 02:09:31,990 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:09:31,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-11-03 02:09:32,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/data/822d4fdfa/c87bf3ae913245dabd9b619f003bd92d/FLAG312d35268 [2022-11-03 02:09:32,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/data/822d4fdfa/c87bf3ae913245dabd9b619f003bd92d [2022-11-03 02:09:32,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:09:32,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:09:32,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:32,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:09:32,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:09:32,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:32" (1/1) ... [2022-11-03 02:09:32,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448f2d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:32, skipping insertion in model container [2022-11-03 02:09:32,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:09:32" (1/1) ... [2022-11-03 02:09:32,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:09:32,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:09:37,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2022-11-03 02:09:37,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2022-11-03 02:09:37,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:37,070 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:09:37,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2022-11-03 02:09:37,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2022-11-03 02:09:37,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:09:37,914 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:09:37,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37 WrapperNode [2022-11-03 02:09:37,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:09:37,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:37,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:09:37,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:09:37,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,216 INFO L138 Inliner]: procedures = 518, calls = 2126, calls flagged for inlining = 214, calls inlined = 173, statements flattened = 5323 [2022-11-03 02:09:38,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:09:38,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:09:38,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:09:38,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:09:38,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:09:38,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:09:38,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:09:38,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:09:38,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (1/1) ... [2022-11-03 02:09:38,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:09:38,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:38,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:09:38,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad09c22-834f-4f89-9e3a-818d4e050958/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:09:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2022-11-03 02:09:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2022-11-03 02:09:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 02:09:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2022-11-03 02:09:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2022-11-03 02:09:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2022-11-03 02:09:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2022-11-03 02:09:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2022-11-03 02:09:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2022-11-03 02:09:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:09:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:09:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 02:09:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 02:09:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:09:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:09:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 02:09:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 02:09:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2022-11-03 02:09:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2022-11-03 02:09:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2022-11-03 02:09:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2022-11-03 02:09:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:09:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:09:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2022-11-03 02:09:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2022-11-03 02:09:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-11-03 02:09:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-11-03 02:09:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2022-11-03 02:09:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2022-11-03 02:09:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-03 02:09:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-03 02:09:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2022-11-03 02:09:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2022-11-03 02:09:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:09:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:09:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2022-11-03 02:09:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2022-11-03 02:09:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-03 02:09:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:09:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:09:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2022-11-03 02:09:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2022-11-03 02:09:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:09:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104 [2022-11-03 02:09:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104 [2022-11-03 02:09:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2022-11-03 02:09:38,723 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2022-11-03 02:09:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104___0 [2022-11-03 02:09:38,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104___0 [2022-11-03 02:09:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:09:38,726 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:09:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2022-11-03 02:09:38,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2022-11-03 02:09:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:09:38,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:09:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:09:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2022-11-03 02:09:38,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2022-11-03 02:09:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2022-11-03 02:09:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2022-11-03 02:09:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:09:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:09:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:09:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2022-11-03 02:09:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2022-11-03 02:09:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2022-11-03 02:09:38,729 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2022-11-03 02:09:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2022-11-03 02:09:38,729 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2022-11-03 02:09:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:09:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2022-11-03 02:09:38,730 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2022-11-03 02:09:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:09:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:09:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2022-11-03 02:09:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2022-11-03 02:09:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:09:38,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:09:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2022-11-03 02:09:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2022-11-03 02:09:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:09:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:09:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:09:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:09:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-03 02:09:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-03 02:09:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2022-11-03 02:09:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2022-11-03 02:09:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:09:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:09:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:09:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:09:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:09:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2022-11-03 02:09:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2022-11-03 02:09:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 02:09:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-03 02:09:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2022-11-03 02:09:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2022-11-03 02:09:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:09:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:09:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:09:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2022-11-03 02:09:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2022-11-03 02:09:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-11-03 02:09:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-11-03 02:09:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:09:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:09:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:09:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2022-11-03 02:09:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2022-11-03 02:09:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2022-11-03 02:09:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2022-11-03 02:09:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:09:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:09:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2022-11-03 02:09:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2022-11-03 02:09:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:09:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:09:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:09:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:09:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:09:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:09:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:09:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:09:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2022-11-03 02:09:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2022-11-03 02:09:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2022-11-03 02:09:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2022-11-03 02:09:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:09:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:09:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2022-11-03 02:09:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2022-11-03 02:09:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:09:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:09:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:09:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:09:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:09:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:09:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:09:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:09:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2022-11-03 02:09:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2022-11-03 02:09:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2022-11-03 02:09:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2022-11-03 02:09:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2022-11-03 02:09:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2022-11-03 02:09:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2022-11-03 02:09:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2022-11-03 02:09:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2022-11-03 02:09:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2022-11-03 02:09:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2022-11-03 02:09:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2022-11-03 02:09:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2022-11-03 02:09:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2022-11-03 02:09:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2022-11-03 02:09:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2022-11-03 02:09:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2022-11-03 02:09:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2022-11-03 02:09:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2022-11-03 02:09:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2022-11-03 02:09:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 02:09:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 02:09:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-11-03 02:09:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-11-03 02:09:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2022-11-03 02:09:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2022-11-03 02:09:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2022-11-03 02:09:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2022-11-03 02:09:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2022-11-03 02:09:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2022-11-03 02:09:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:09:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:09:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:09:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:09:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2022-11-03 02:09:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2022-11-03 02:09:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2022-11-03 02:09:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2022-11-03 02:09:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:09:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:09:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:09:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2022-11-03 02:09:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2022-11-03 02:09:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2022-11-03 02:09:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2022-11-03 02:09:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2022-11-03 02:09:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2022-11-03 02:09:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:09:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2022-11-03 02:09:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2022-11-03 02:09:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-03 02:09:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-03 02:09:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:09:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2022-11-03 02:09:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2022-11-03 02:09:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-11-03 02:09:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-11-03 02:09:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:09:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:09:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:09:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:09:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2022-11-03 02:09:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2022-11-03 02:09:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:09:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:09:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2022-11-03 02:09:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2022-11-03 02:09:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:09:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:09:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2022-11-03 02:09:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2022-11-03 02:09:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2022-11-03 02:09:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2022-11-03 02:09:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:09:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:09:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2022-11-03 02:09:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2022-11-03 02:09:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2022-11-03 02:09:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2022-11-03 02:09:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2022-11-03 02:09:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2022-11-03 02:09:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:09:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:09:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:09:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:09:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2022-11-03 02:09:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2022-11-03 02:09:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:09:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2022-11-03 02:09:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2022-11-03 02:09:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2022-11-03 02:09:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2022-11-03 02:09:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:09:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:09:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2022-11-03 02:09:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2022-11-03 02:09:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-03 02:09:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:09:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:09:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_103 [2022-11-03 02:09:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_103 [2022-11-03 02:09:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:09:38,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:09:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2022-11-03 02:09:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2022-11-03 02:09:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:09:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:09:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2022-11-03 02:09:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2022-11-03 02:09:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:09:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:09:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-11-03 02:09:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-11-03 02:09:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2022-11-03 02:09:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2022-11-03 02:09:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2022-11-03 02:09:38,780 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2022-11-03 02:09:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2022-11-03 02:09:38,780 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2022-11-03 02:09:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:09:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:09:38,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:09:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2022-11-03 02:09:38,780 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2022-11-03 02:09:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:09:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:09:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2022-11-03 02:09:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2022-11-03 02:09:40,023 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:09:40,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:09:40,773 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:09:44,206 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:09:44,459 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:09:45,961 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:09:45,962 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:09:45,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:09:45 BoogieIcfgContainer [2022-11-03 02:09:45,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:09:45,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:09:45,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:09:45,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:09:45,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:09:32" (1/3) ... [2022-11-03 02:09:45,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a486e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:09:45, skipping insertion in model container [2022-11-03 02:09:45,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:09:37" (2/3) ... [2022-11-03 02:09:45,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a486e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:09:45, skipping insertion in model container [2022-11-03 02:09:45,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:09:45" (3/3) ... [2022-11-03 02:09:45,980 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-11-03 02:09:46,003 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:09:46,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:09:46,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:09:46,153 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;@511ee8ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:09:46,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:09:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 1742 states, 1015 states have (on average 1.3024630541871922) internal successors, (1322), 1063 states have internal predecessors, (1322), 602 states have call successors, (602), 125 states have call predecessors, (602), 124 states have return successors, (596), 573 states have call predecessors, (596), 596 states have call successors, (596) [2022-11-03 02:09:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-03 02:09:46,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:46,221 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:46,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:09:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash -226838321, now seen corresponding path program 1 times [2022-11-03 02:09:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:46,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127720015] [2022-11-03 02:09:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:47,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-11-03 02:09:47,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:47,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127720015] [2022-11-03 02:09:47,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127720015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:47,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:47,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:47,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262882567] [2022-11-03 02:09:47,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:47,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:47,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:47,578 INFO L87 Difference]: Start difference. First operand has 1742 states, 1015 states have (on average 1.3024630541871922) internal successors, (1322), 1063 states have internal predecessors, (1322), 602 states have call successors, (602), 125 states have call predecessors, (602), 124 states have return successors, (596), 573 states have call predecessors, (596), 596 states have call successors, (596) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:09:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:49,597 INFO L93 Difference]: Finished difference Result 5017 states and 7329 transitions. [2022-11-03 02:09:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 366 [2022-11-03 02:09:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:49,656 INFO L225 Difference]: With dead ends: 5017 [2022-11-03 02:09:49,656 INFO L226 Difference]: Without dead ends: 3279 [2022-11-03 02:09:49,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:49,683 INFO L413 NwaCegarLoop]: 2752 mSDtfsCounter, 2302 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 4917 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:49,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 4917 Invalid, 672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:09:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-11-03 02:09:50,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3275. [2022-11-03 02:09:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 1938 states have (on average 1.2966976264189887) internal successors, (2513), 2034 states have internal predecessors, (2513), 1092 states have call successors, (1092), 244 states have call predecessors, (1092), 244 states have return successors, (1092), 1044 states have call predecessors, (1092), 1092 states have call successors, (1092) [2022-11-03 02:09:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4697 transitions. [2022-11-03 02:09:50,114 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4697 transitions. Word has length 366 [2022-11-03 02:09:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:50,117 INFO L495 AbstractCegarLoop]: Abstraction has 3275 states and 4697 transitions. [2022-11-03 02:09:50,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:09:50,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4697 transitions. [2022-11-03 02:09:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-11-03 02:09:50,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:50,133 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:50,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:09:50,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:09:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash -968352766, now seen corresponding path program 1 times [2022-11-03 02:09:50,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:50,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544445817] [2022-11-03 02:09:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:50,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-11-03 02:09:50,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:50,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544445817] [2022-11-03 02:09:50,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544445817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:50,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:50,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:50,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687648981] [2022-11-03 02:09:50,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:50,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:50,762 INFO L87 Difference]: Start difference. First operand 3275 states and 4697 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:09:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:52,822 INFO L93 Difference]: Finished difference Result 8804 states and 12564 transitions. [2022-11-03 02:09:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:52,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 367 [2022-11-03 02:09:52,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:52,874 INFO L225 Difference]: With dead ends: 8804 [2022-11-03 02:09:52,874 INFO L226 Difference]: Without dead ends: 5598 [2022-11-03 02:09:52,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:52,896 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 2238 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 5578 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:52,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 5578 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:09:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5598 states. [2022-11-03 02:09:53,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5598 to 5594. [2022-11-03 02:09:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 3296 states have (on average 1.2915655339805825) internal successors, (4257), 3473 states have internal predecessors, (4257), 1850 states have call successors, (1850), 447 states have call predecessors, (1850), 447 states have return successors, (1850), 1753 states have call predecessors, (1850), 1850 states have call successors, (1850) [2022-11-03 02:09:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 7957 transitions. [2022-11-03 02:09:53,365 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 7957 transitions. Word has length 367 [2022-11-03 02:09:53,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:53,371 INFO L495 AbstractCegarLoop]: Abstraction has 5594 states and 7957 transitions. [2022-11-03 02:09:53,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:09:53,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 7957 transitions. [2022-11-03 02:09:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-11-03 02:09:53,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:53,386 INFO L195 NwaCegarLoop]: trace histogram [36, 34, 34, 34, 34, 34, 34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:53,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:09:53,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:09:53,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2052461169, now seen corresponding path program 1 times [2022-11-03 02:09:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:53,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403596160] [2022-11-03 02:09:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:53,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4629 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4626 trivial. 0 not checked. [2022-11-03 02:09:53,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:53,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403596160] [2022-11-03 02:09:53,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403596160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:53,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:53,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:53,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791829302] [2022-11-03 02:09:53,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:53,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:53,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:53,890 INFO L87 Difference]: Start difference. First operand 5594 states and 7957 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:09:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:55,331 INFO L93 Difference]: Finished difference Result 11864 states and 16808 transitions. [2022-11-03 02:09:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:55,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 383 [2022-11-03 02:09:55,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:55,379 INFO L225 Difference]: With dead ends: 11864 [2022-11-03 02:09:55,379 INFO L226 Difference]: Without dead ends: 6339 [2022-11-03 02:09:55,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:55,408 INFO L413 NwaCegarLoop]: 2375 mSDtfsCounter, 983 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:55,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 4493 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:09:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6339 states. [2022-11-03 02:09:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6339 to 6337. [2022-11-03 02:09:55,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6337 states, 3723 states have (on average 1.2857910287402632) internal successors, (4787), 3930 states have internal predecessors, (4787), 2080 states have call successors, (2080), 533 states have call predecessors, (2080), 533 states have return successors, (2080), 1961 states have call predecessors, (2080), 2080 states have call successors, (2080) [2022-11-03 02:09:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6337 states to 6337 states and 8947 transitions. [2022-11-03 02:09:55,909 INFO L78 Accepts]: Start accepts. Automaton has 6337 states and 8947 transitions. Word has length 383 [2022-11-03 02:09:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:55,911 INFO L495 AbstractCegarLoop]: Abstraction has 6337 states and 8947 transitions. [2022-11-03 02:09:55,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:09:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6337 states and 8947 transitions. [2022-11-03 02:09:55,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-03 02:09:55,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:55,926 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:55,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:09:55,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:09:55,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:55,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1331008247, now seen corresponding path program 1 times [2022-11-03 02:09:55,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:55,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484205185] [2022-11-03 02:09:55,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:55,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4832 trivial. 0 not checked. [2022-11-03 02:09:56,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:56,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484205185] [2022-11-03 02:09:56,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484205185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:56,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:56,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:09:56,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258091003] [2022-11-03 02:09:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:56,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:09:56,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:09:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:56,412 INFO L87 Difference]: Start difference. First operand 6337 states and 8947 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:09:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:58,482 INFO L93 Difference]: Finished difference Result 17980 states and 25387 transitions. [2022-11-03 02:09:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:09:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 403 [2022-11-03 02:09:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:58,564 INFO L225 Difference]: With dead ends: 17980 [2022-11-03 02:09:58,564 INFO L226 Difference]: Without dead ends: 11712 [2022-11-03 02:09:58,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:09:58,594 INFO L413 NwaCegarLoop]: 2669 mSDtfsCounter, 2278 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 4787 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:58,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 4787 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:09:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11712 states. [2022-11-03 02:09:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11712 to 11702. [2022-11-03 02:09:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11702 states, 6897 states have (on average 1.2870813397129186) internal successors, (8877), 7289 states have internal predecessors, (8877), 3816 states have call successors, (3816), 988 states have call predecessors, (3816), 988 states have return successors, (3816), 3592 states have call predecessors, (3816), 3816 states have call successors, (3816) [2022-11-03 02:09:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11702 states to 11702 states and 16509 transitions. [2022-11-03 02:09:59,364 INFO L78 Accepts]: Start accepts. Automaton has 11702 states and 16509 transitions. Word has length 403 [2022-11-03 02:09:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:59,366 INFO L495 AbstractCegarLoop]: Abstraction has 11702 states and 16509 transitions. [2022-11-03 02:09:59,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:09:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11702 states and 16509 transitions. [2022-11-03 02:09:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-03 02:09:59,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:59,381 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:59,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:09:59,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:09:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1640742344, now seen corresponding path program 1 times [2022-11-03 02:09:59,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:59,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926869410] [2022-11-03 02:09:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:59,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4832 trivial. 0 not checked. [2022-11-03 02:10:00,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:00,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926869410] [2022-11-03 02:10:00,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926869410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:00,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:00,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:00,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198794320] [2022-11-03 02:10:00,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:00,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:00,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:00,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:00,048 INFO L87 Difference]: Start difference. First operand 11702 states and 16509 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:10:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:02,695 INFO L93 Difference]: Finished difference Result 33973 states and 47916 transitions. [2022-11-03 02:10:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:02,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 407 [2022-11-03 02:10:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:02,871 INFO L225 Difference]: With dead ends: 33973 [2022-11-03 02:10:02,871 INFO L226 Difference]: Without dead ends: 22340 [2022-11-03 02:10:02,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:02,947 INFO L413 NwaCegarLoop]: 2709 mSDtfsCounter, 2279 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:02,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 4827 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:10:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22340 states. [2022-11-03 02:10:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22340 to 22330. [2022-11-03 02:10:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22330 states, 13191 states have (on average 1.2869380638314003) internal successors, (16976), 13953 states have internal predecessors, (16976), 7240 states have call successors, (7240), 1898 states have call predecessors, (7240), 1898 states have return successors, (7240), 6806 states have call predecessors, (7240), 7240 states have call successors, (7240) [2022-11-03 02:10:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22330 states to 22330 states and 31456 transitions. [2022-11-03 02:10:04,413 INFO L78 Accepts]: Start accepts. Automaton has 22330 states and 31456 transitions. Word has length 407 [2022-11-03 02:10:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:04,414 INFO L495 AbstractCegarLoop]: Abstraction has 22330 states and 31456 transitions. [2022-11-03 02:10:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:10:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 22330 states and 31456 transitions. [2022-11-03 02:10:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-03 02:10:04,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:04,431 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:04,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:10:04,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:04,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1697729722, now seen corresponding path program 1 times [2022-11-03 02:10:04,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:04,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883588029] [2022-11-03 02:10:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:04,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4836 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4836 trivial. 0 not checked. [2022-11-03 02:10:05,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:05,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883588029] [2022-11-03 02:10:05,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883588029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:05,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:05,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121123751] [2022-11-03 02:10:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:05,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:05,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:05,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:05,039 INFO L87 Difference]: Start difference. First operand 22330 states and 31456 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 02:10:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:08,074 INFO L93 Difference]: Finished difference Result 63883 states and 90066 transitions. [2022-11-03 02:10:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:08,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 410 [2022-11-03 02:10:08,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:08,310 INFO L225 Difference]: With dead ends: 63883 [2022-11-03 02:10:08,311 INFO L226 Difference]: Without dead ends: 41622 [2022-11-03 02:10:08,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:08,417 INFO L413 NwaCegarLoop]: 3034 mSDtfsCounter, 2280 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 5152 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:08,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 5152 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:10:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41622 states. [2022-11-03 02:10:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41622 to 41612. [2022-11-03 02:10:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41612 states, 24694 states have (on average 1.2870737831052077) internal successors, (31783), 26077 states have internal predecessors, (31783), 13418 states have call successors, (13418), 3499 states have call predecessors, (13418), 3499 states have return successors, (13418), 12657 states have call predecessors, (13418), 13418 states have call successors, (13418) [2022-11-03 02:10:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41612 states to 41612 states and 58619 transitions. [2022-11-03 02:10:11,874 INFO L78 Accepts]: Start accepts. Automaton has 41612 states and 58619 transitions. Word has length 410 [2022-11-03 02:10:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:11,875 INFO L495 AbstractCegarLoop]: Abstraction has 41612 states and 58619 transitions. [2022-11-03 02:10:11,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 02:10:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 41612 states and 58619 transitions. [2022-11-03 02:10:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-03 02:10:11,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:11,888 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:11,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:10:11,888 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:11,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:11,889 INFO L85 PathProgramCache]: Analyzing trace with hash 333151584, now seen corresponding path program 1 times [2022-11-03 02:10:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:11,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731289513] [2022-11-03 02:10:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:11,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4791 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4784 trivial. 0 not checked. [2022-11-03 02:10:12,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:12,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731289513] [2022-11-03 02:10:12,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731289513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:12,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:12,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:12,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064787067] [2022-11-03 02:10:12,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:12,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:12,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:12,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:12,555 INFO L87 Difference]: Start difference. First operand 41612 states and 58619 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:10:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:17,373 INFO L93 Difference]: Finished difference Result 100111 states and 140793 transitions. [2022-11-03 02:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:17,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2022-11-03 02:10:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:18,081 INFO L225 Difference]: With dead ends: 100111 [2022-11-03 02:10:18,082 INFO L226 Difference]: Without dead ends: 58615 [2022-11-03 02:10:18,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:18,252 INFO L413 NwaCegarLoop]: 3227 mSDtfsCounter, 2238 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:18,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 5328 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:10:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58615 states. [2022-11-03 02:10:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58615 to 58597. [2022-11-03 02:10:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58597 states, 34690 states have (on average 1.2841452868261747) internal successors, (44547), 36698 states have internal predecessors, (44547), 18851 states have call successors, (18851), 5055 states have call predecessors, (18851), 5055 states have return successors, (18851), 17709 states have call predecessors, (18851), 18851 states have call successors, (18851) [2022-11-03 02:10:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58597 states to 58597 states and 82249 transitions. [2022-11-03 02:10:22,143 INFO L78 Accepts]: Start accepts. Automaton has 58597 states and 82249 transitions. Word has length 411 [2022-11-03 02:10:22,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:22,145 INFO L495 AbstractCegarLoop]: Abstraction has 58597 states and 82249 transitions. [2022-11-03 02:10:22,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:10:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 58597 states and 82249 transitions. [2022-11-03 02:10:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-03 02:10:22,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:22,152 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:22,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:10:22,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash -788534895, now seen corresponding path program 1 times [2022-11-03 02:10:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:22,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827160678] [2022-11-03 02:10:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4791 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4784 trivial. 0 not checked. [2022-11-03 02:10:22,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:22,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827160678] [2022-11-03 02:10:22,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827160678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:22,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:22,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:10:22,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917801631] [2022-11-03 02:10:22,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:22,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:22,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:22,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:22,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:22,570 INFO L87 Difference]: Start difference. First operand 58597 states and 82249 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:10:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:27,668 INFO L93 Difference]: Finished difference Result 139042 states and 194679 transitions. [2022-11-03 02:10:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:10:27,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 412 [2022-11-03 02:10:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:28,219 INFO L225 Difference]: With dead ends: 139042 [2022-11-03 02:10:28,220 INFO L226 Difference]: Without dead ends: 80561 [2022-11-03 02:10:28,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:28,496 INFO L413 NwaCegarLoop]: 3262 mSDtfsCounter, 2237 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:28,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 5363 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 02:10:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80561 states. [2022-11-03 02:10:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80561 to 80543. [2022-11-03 02:10:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80543 states, 47527 states have (on average 1.280093420581985) internal successors, (60839), 50401 states have internal predecessors, (60839), 25817 states have call successors, (25817), 7198 states have call predecessors, (25817), 7198 states have return successors, (25817), 24109 states have call predecessors, (25817), 25817 states have call successors, (25817) [2022-11-03 02:10:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80543 states to 80543 states and 112473 transitions. [2022-11-03 02:10:33,121 INFO L78 Accepts]: Start accepts. Automaton has 80543 states and 112473 transitions. Word has length 412 [2022-11-03 02:10:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:33,122 INFO L495 AbstractCegarLoop]: Abstraction has 80543 states and 112473 transitions. [2022-11-03 02:10:33,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:10:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 80543 states and 112473 transitions. [2022-11-03 02:10:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-03 02:10:33,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:33,138 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:33,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:10:33,138 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:33,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:33,139 INFO L85 PathProgramCache]: Analyzing trace with hash 156956659, now seen corresponding path program 1 times [2022-11-03 02:10:33,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:33,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479712086] [2022-11-03 02:10:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4961 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4941 trivial. 0 not checked. [2022-11-03 02:10:34,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:34,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479712086] [2022-11-03 02:10:34,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479712086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:34,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:34,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:10:34,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387061491] [2022-11-03 02:10:34,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:34,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:10:34,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:10:34,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:10:34,336 INFO L87 Difference]: Start difference. First operand 80543 states and 112473 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:10:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:48,750 INFO L93 Difference]: Finished difference Result 283171 states and 394533 transitions. [2022-11-03 02:10:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:10:48,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 429 [2022-11-03 02:10:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:50,316 INFO L225 Difference]: With dead ends: 283171 [2022-11-03 02:10:50,316 INFO L226 Difference]: Without dead ends: 202744 [2022-11-03 02:10:50,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:50,659 INFO L413 NwaCegarLoop]: 3659 mSDtfsCounter, 7078 mSDsluCounter, 5522 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 2345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7078 SdHoareTripleChecker+Valid, 8614 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2345 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:50,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7078 Valid, 8614 Invalid, 3326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2345 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:10:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202744 states.