./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-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:32:45,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:32:45,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:32:46,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:32:46,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:32:46,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:32:46,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:32:46,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:32:46,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:32:46,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:32:46,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:32:46,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:32:46,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:32:46,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:32:46,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:32:46,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:32:46,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:32:46,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:32:46,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:32:46,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:32:46,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:32:46,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:32:46,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:32:46,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:32:46,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:32:46,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:32:46,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:32:46,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:32:46,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:32:46,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:32:46,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:32:46,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:32:46,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:32:46,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:32:46,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:32:46,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:32:46,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:32:46,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:32:46,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:32:46,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:32:46,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:32:46,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:32:46,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:32:46,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:32:46,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:32:46,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:32:46,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:32:46,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:32:46,146 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:32:46,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:32:46,146 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:32:46,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:32:46,147 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:32:46,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:32:46,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:32:46,148 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:32:46,148 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:32:46,148 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:32:46,148 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:32:46,148 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:32:46,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:32:46,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:32:46,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:32:46,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:32:46,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:32:46,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:32:46,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:32:46,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:32:46,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:32:46,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:32:46,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:32:46,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:32:46,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:32:46,157 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:32:46,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:32:46,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:32:46,158 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:32:46,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:32:46,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:32:46,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:32:46,159 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_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2022-11-22 00:32:46,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:32:46,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:32:46,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:32:46,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:32:46,457 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:32:46,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-22 00:32:49,706 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:32:50,296 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:32:50,297 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-22 00:32:50,371 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/data/de809366b/6161ee8e44414b8b967561721625f423/FLAGc55ad4502 [2022-11-22 00:32:50,391 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/data/de809366b/6161ee8e44414b8b967561721625f423 [2022-11-22 00:32:50,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:32:50,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:32:50,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:32:50,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:32:50,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:32:50,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:50" (1/1) ... [2022-11-22 00:32:50,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c61d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:50, skipping insertion in model container [2022-11-22 00:32:50,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:50" (1/1) ... [2022-11-22 00:32:50,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:32:50,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:32:54,404 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-22 00:32:54,410 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-22 00:32:54,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:32:54,494 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:32:54,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-22 00:32:54,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-22 00:32:55,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:32:55,235 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:32:55,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55 WrapperNode [2022-11-22 00:32:55,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:32:55,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:32:55,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:32:55,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:32:55,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:55,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:55,722 INFO L138 Inliner]: procedures = 551, calls = 3920, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 9260 [2022-11-22 00:32:55,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:32:55,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:32:55,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:32:55,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:32:55,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:55,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:55,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:55,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:32:56,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:32:56,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:32:56,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:32:56,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (1/1) ... [2022-11-22 00:32:56,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:32:56,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:32:56,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:32:56,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b5f6362-b120-42bb-ab4e-6d739323cfcc/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:32:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-22 00:32:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-22 00:32:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-22 00:32:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-22 00:32:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:32:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:32:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-22 00:32:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-22 00:32:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-22 00:32:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-22 00:32:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 00:32:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 00:32:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:32:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:32:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-22 00:32:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-22 00:32:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-22 00:32:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-22 00:32:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 00:32:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 00:32:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-22 00:32:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-22 00:32:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-22 00:32:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-22 00:32:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-22 00:32:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-22 00:32:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-22 00:32:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-22 00:32:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-22 00:32:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-22 00:32:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-22 00:32:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-22 00:32:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-22 00:32:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-22 00:32:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-22 00:32:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-22 00:32:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-22 00:32:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-22 00:32:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-22 00:32:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-22 00:32:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-22 00:32:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-22 00:32:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 00:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-22 00:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-22 00:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-22 00:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-22 00:32:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:32:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:32:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-22 00:32:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-22 00:32:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:32:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:32:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:32:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-22 00:32:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-22 00:32:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 00:32:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 00:32:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2022-11-22 00:32:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2022-11-22 00:32:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-22 00:32:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-22 00:32:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 00:32:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 00:32:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:32:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:32:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-22 00:32:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-22 00:32:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-22 00:32:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-22 00:32:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-22 00:32:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-22 00:32:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-22 00:32:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-22 00:32:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-22 00:32:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-22 00:32:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2022-11-22 00:32:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2022-11-22 00:32:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 00:32:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 00:32:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-22 00:32:56,323 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-22 00:32:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:32:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 00:32:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 00:32:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-22 00:32:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-22 00:32:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-22 00:32:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-22 00:32:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-22 00:32:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-22 00:32:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:32:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:32:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:32:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-22 00:32:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-22 00:32:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-22 00:32:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-22 00:32:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:32:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-22 00:32:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-22 00:32:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 00:32:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 00:32:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-22 00:32:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-22 00:32:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:32:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:32:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-22 00:32:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-22 00:32:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-22 00:32:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-22 00:32:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-22 00:32:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-22 00:32:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-22 00:32:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-22 00:32:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:32:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:32:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 00:32:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 00:32:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-22 00:32:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-22 00:32:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 00:32:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 00:32:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-22 00:32:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-22 00:32:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-22 00:32:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-22 00:32:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:32:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-22 00:32:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-22 00:32:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:32:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:32:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:32:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:32:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 00:32:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 00:32:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 00:32:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 00:32:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-22 00:32:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 00:32:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 00:32:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:32:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:32:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:32:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:32:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:32:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-22 00:32:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-22 00:32:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 00:32:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 00:32:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 00:32:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 00:32:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-22 00:32:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-22 00:32:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 00:32:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 00:32:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-22 00:32:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-22 00:32:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-22 00:32:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-22 00:32:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 00:32:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 00:32:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 00:32:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 00:32:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-22 00:32:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-22 00:32:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 00:32:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 00:32:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-22 00:32:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-22 00:32:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-22 00:32:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-22 00:32:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-22 00:32:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-22 00:32:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:32:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:32:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-22 00:32:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-22 00:32:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 00:32:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 00:32:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-22 00:32:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-22 00:32:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-22 00:32:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-22 00:32:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-22 00:32:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-22 00:32:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-22 00:32:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-22 00:32:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:32:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:32:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-22 00:32:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-22 00:32:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:32:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:32:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-22 00:32:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-22 00:32:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-22 00:32:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-22 00:32:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 00:32:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 00:32:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-22 00:32:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-22 00:32:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-22 00:32:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-22 00:32:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-22 00:32:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-22 00:32:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-22 00:32:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-22 00:32:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-22 00:32:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-22 00:32:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-22 00:32:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-22 00:32:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 00:32:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 00:32:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-22 00:32:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-22 00:32:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:32:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:32:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-22 00:32:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-22 00:32:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:32:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:32:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-22 00:32:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-22 00:32:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-22 00:32:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-22 00:32:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-22 00:32:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-22 00:32:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-22 00:32:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-22 00:32:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 00:32:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 00:32:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-22 00:32:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-22 00:32:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:32:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:32:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:32:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-22 00:32:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-22 00:32:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 00:32:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 00:32:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-22 00:32:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-22 00:32:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:32:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-22 00:32:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-22 00:32:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-22 00:32:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-22 00:32:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:32:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:32:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:32:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 00:32:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 00:32:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 00:32:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 00:32:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-22 00:32:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-22 00:32:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 00:32:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 00:32:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:32:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:32:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-22 00:32:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-22 00:32:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-22 00:32:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-22 00:32:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 00:32:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 00:32:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 00:32:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 00:32:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-22 00:32:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-22 00:32:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2022-11-22 00:32:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2022-11-22 00:32:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2022-11-22 00:32:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2022-11-22 00:32:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-22 00:32:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-22 00:32:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-22 00:32:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-22 00:32:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2022-11-22 00:32:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2022-11-22 00:32:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:32:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:32:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-22 00:32:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-22 00:32:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-22 00:32:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-22 00:32:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-22 00:32:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-22 00:32:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-22 00:32:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-22 00:32:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-22 00:32:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-22 00:32:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:32:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-22 00:32:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-22 00:32:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-22 00:32:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-22 00:32:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:32:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:32:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2022-11-22 00:32:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2022-11-22 00:32:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-22 00:32:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-22 00:32:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-22 00:32:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-22 00:32:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-22 00:32:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-22 00:32:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-22 00:32:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-22 00:32:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 00:32:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 00:32:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-22 00:32:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-22 00:32:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-22 00:32:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-22 00:32:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-22 00:32:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-22 00:32:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-22 00:32:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-22 00:32:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 00:32:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 00:32:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 00:32:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 00:32:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 00:32:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 00:32:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-22 00:32:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-22 00:32:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:32:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:32:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-22 00:32:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-22 00:32:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 00:32:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 00:32:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:32:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:32:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-22 00:32:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-22 00:32:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:32:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-22 00:32:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-22 00:32:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-22 00:32:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-22 00:32:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-22 00:32:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-22 00:32:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:32:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:32:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 00:32:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-22 00:32:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-22 00:32:57,777 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:32:57,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:32:58,081 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:32:59,064 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-22 00:33:08,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:33:08,330 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:33:10,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:33:10,344 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 00:33:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:33:10 BoogieIcfgContainer [2022-11-22 00:33:10,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:33:10,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:33:10,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:33:10,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:33:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:32:50" (1/3) ... [2022-11-22 00:33:10,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bd88db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:33:10, skipping insertion in model container [2022-11-22 00:33:10,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:55" (2/3) ... [2022-11-22 00:33:10,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bd88db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:33:10, skipping insertion in model container [2022-11-22 00:33:10,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:33:10" (3/3) ... [2022-11-22 00:33:10,361 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-22 00:33:10,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:33:10,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:33:10,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:33:10,507 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;@47b3d680, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:33:10,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:33:10,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2022-11-22 00:33:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-22 00:33:10,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:10,607 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:10,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:10,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:10,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1545088998, now seen corresponding path program 1 times [2022-11-22 00:33:10,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:10,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444878496] [2022-11-22 00:33:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7665 trivial. 0 not checked. [2022-11-22 00:33:12,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:12,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444878496] [2022-11-22 00:33:12,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444878496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:12,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:12,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:12,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452382803] [2022-11-22 00:33:12,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:12,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:12,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:12,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:12,378 INFO L87 Difference]: Start difference. First operand has 2631 states, 1544 states have (on average 1.3128238341968912) internal successors, (2027), 1594 states have internal predecessors, (2027), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 00:33:14,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:18,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:19,605 INFO L93 Difference]: Finished difference Result 7224 states and 10638 transitions. [2022-11-22 00:33:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 531 [2022-11-22 00:33:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:19,690 INFO L225 Difference]: With dead ends: 7224 [2022-11-22 00:33:19,691 INFO L226 Difference]: Without dead ends: 4619 [2022-11-22 00:33:19,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:19,733 INFO L413 NwaCegarLoop]: 5041 mSDtfsCounter, 2987 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 8471 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:19,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 8471 Invalid, 933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 924 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 00:33:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-11-22 00:33:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4615. [2022-11-22 00:33:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 2730 states have (on average 1.3054945054945055) internal successors, (3564), 2810 states have internal predecessors, (3564), 1577 states have call successors, (1577), 307 states have call predecessors, (1577), 307 states have return successors, (1579), 1564 states have call predecessors, (1579), 1577 states have call successors, (1579) [2022-11-22 00:33:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 6720 transitions. [2022-11-22 00:33:20,255 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 6720 transitions. Word has length 531 [2022-11-22 00:33:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:20,261 INFO L495 AbstractCegarLoop]: Abstraction has 4615 states and 6720 transitions. [2022-11-22 00:33:20,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 00:33:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 6720 transitions. [2022-11-22 00:33:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-22 00:33:20,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:20,309 INFO L195 NwaCegarLoop]: trace histogram [46, 44, 44, 44, 44, 44, 44, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:20,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:33:20,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:20,311 INFO L85 PathProgramCache]: Analyzing trace with hash 223083729, now seen corresponding path program 1 times [2022-11-22 00:33:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:20,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381548963] [2022-11-22 00:33:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7764 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7761 trivial. 0 not checked. [2022-11-22 00:33:21,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381548963] [2022-11-22 00:33:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381548963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:21,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142116497] [2022-11-22 00:33:21,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:21,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:21,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:21,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:21,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:21,576 INFO L87 Difference]: Start difference. First operand 4615 states and 6720 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-22 00:33:23,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:27,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:28,422 INFO L93 Difference]: Finished difference Result 11131 states and 16176 transitions. [2022-11-22 00:33:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:28,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 549 [2022-11-22 00:33:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:28,492 INFO L225 Difference]: With dead ends: 11131 [2022-11-22 00:33:28,492 INFO L226 Difference]: Without dead ends: 6605 [2022-11-22 00:33:28,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:28,528 INFO L413 NwaCegarLoop]: 4912 mSDtfsCounter, 2897 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 8238 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:28,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2899 Valid, 8238 Invalid, 923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 913 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 00:33:28,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2022-11-22 00:33:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6603. [2022-11-22 00:33:29,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 3904 states have (on average 1.3037909836065573) internal successors, (5090), 4014 states have internal predecessors, (5090), 2243 states have call successors, (2243), 455 states have call predecessors, (2243), 455 states have return successors, (2247), 2225 states have call predecessors, (2247), 2243 states have call successors, (2247) [2022-11-22 00:33:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 9580 transitions. [2022-11-22 00:33:29,125 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 9580 transitions. Word has length 549 [2022-11-22 00:33:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:29,133 INFO L495 AbstractCegarLoop]: Abstraction has 6603 states and 9580 transitions. [2022-11-22 00:33:29,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-22 00:33:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 9580 transitions. [2022-11-22 00:33:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-22 00:33:29,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:29,165 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:29,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:33:29,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1292022495, now seen corresponding path program 1 times [2022-11-22 00:33:29,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:29,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100467444] [2022-11-22 00:33:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:29,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-22 00:33:29,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:29,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100467444] [2022-11-22 00:33:29,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100467444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:29,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:29,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:29,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881062260] [2022-11-22 00:33:29,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:29,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:29,991 INFO L87 Difference]: Start difference. First operand 6603 states and 9580 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 00:33:32,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:36,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:38,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:39,668 INFO L93 Difference]: Finished difference Result 17197 states and 24908 transitions. [2022-11-22 00:33:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:39,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 547 [2022-11-22 00:33:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:39,754 INFO L225 Difference]: With dead ends: 17197 [2022-11-22 00:33:39,755 INFO L226 Difference]: Without dead ends: 10683 [2022-11-22 00:33:39,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:39,793 INFO L413 NwaCegarLoop]: 5066 mSDtfsCounter, 3195 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 8412 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:39,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 8412 Invalid, 969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 953 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 00:33:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-11-22 00:33:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 10680. [2022-11-22 00:33:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10680 states, 6327 states have (on average 1.3018808281966177) internal successors, (8237), 6511 states have internal predecessors, (8237), 3590 states have call successors, (3590), 762 states have call predecessors, (3590), 762 states have return successors, (3602), 3559 states have call predecessors, (3602), 3590 states have call successors, (3602) [2022-11-22 00:33:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 15429 transitions. [2022-11-22 00:33:40,463 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 15429 transitions. Word has length 547 [2022-11-22 00:33:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:40,466 INFO L495 AbstractCegarLoop]: Abstraction has 10680 states and 15429 transitions. [2022-11-22 00:33:40,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 00:33:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 15429 transitions. [2022-11-22 00:33:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-11-22 00:33:40,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:40,506 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:40,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:33:40,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1487481446, now seen corresponding path program 1 times [2022-11-22 00:33:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:40,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16504495] [2022-11-22 00:33:40,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-22 00:33:41,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:41,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16504495] [2022-11-22 00:33:41,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16504495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:41,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:41,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215183387] [2022-11-22 00:33:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:41,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:41,492 INFO L87 Difference]: Start difference. First operand 10680 states and 15429 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 00:33:43,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:47,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:48,702 INFO L93 Difference]: Finished difference Result 28012 states and 40320 transitions. [2022-11-22 00:33:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:48,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 548 [2022-11-22 00:33:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:48,835 INFO L225 Difference]: With dead ends: 28012 [2022-11-22 00:33:48,835 INFO L226 Difference]: Without dead ends: 17421 [2022-11-22 00:33:48,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:48,899 INFO L413 NwaCegarLoop]: 5081 mSDtfsCounter, 3210 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3214 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:48,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3214 Valid, 8431 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 952 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-11-22 00:33:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17421 states. [2022-11-22 00:33:49,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17421 to 17410. [2022-11-22 00:33:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17410 states, 10361 states have (on average 1.2996814979249107) internal successors, (13466), 10675 states have internal predecessors, (13466), 5734 states have call successors, (5734), 1314 states have call predecessors, (5734), 1314 states have return successors, (5764), 5680 states have call predecessors, (5764), 5734 states have call successors, (5764) [2022-11-22 00:33:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17410 states to 17410 states and 24964 transitions. [2022-11-22 00:33:50,118 INFO L78 Accepts]: Start accepts. Automaton has 17410 states and 24964 transitions. Word has length 548 [2022-11-22 00:33:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:50,119 INFO L495 AbstractCegarLoop]: Abstraction has 17410 states and 24964 transitions. [2022-11-22 00:33:50,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 00:33:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 17410 states and 24964 transitions. [2022-11-22 00:33:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-11-22 00:33:50,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:50,153 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:50,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:33:50,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:33:50,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:50,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1785971495, now seen corresponding path program 1 times [2022-11-22 00:33:50,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:50,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101520376] [2022-11-22 00:33:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:50,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2022-11-22 00:33:51,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:51,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101520376] [2022-11-22 00:33:51,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101520376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:51,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:51,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:33:51,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258083084] [2022-11-22 00:33:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:51,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:33:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:33:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:51,062 INFO L87 Difference]: Start difference. First operand 17410 states and 24964 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-22 00:33:53,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:56,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:33:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:58,197 INFO L93 Difference]: Finished difference Result 47937 states and 68657 transitions. [2022-11-22 00:33:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:33:58,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 559 [2022-11-22 00:33:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:58,403 INFO L225 Difference]: With dead ends: 47937 [2022-11-22 00:33:58,403 INFO L226 Difference]: Without dead ends: 30616 [2022-11-22 00:33:58,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:33:58,489 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 3062 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 8430 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:58,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 8430 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 961 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-22 00:33:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30616 states. [2022-11-22 00:34:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30616 to 30613. [2022-11-22 00:34:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30613 states, 18221 states have (on average 1.2954283519016518) internal successors, (23604), 18792 states have internal predecessors, (23604), 10040 states have call successors, (10040), 2353 states have call predecessors, (10040), 2351 states have return successors, (10090), 9934 states have call predecessors, (10090), 10040 states have call successors, (10090) [2022-11-22 00:34:00,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30613 states to 30613 states and 43734 transitions. [2022-11-22 00:34:00,721 INFO L78 Accepts]: Start accepts. Automaton has 30613 states and 43734 transitions. Word has length 559 [2022-11-22 00:34:00,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:00,722 INFO L495 AbstractCegarLoop]: Abstraction has 30613 states and 43734 transitions. [2022-11-22 00:34:00,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-22 00:34:00,723 INFO L276 IsEmpty]: Start isEmpty. Operand 30613 states and 43734 transitions. [2022-11-22 00:34:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-22 00:34:00,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:00,771 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:00,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:34:00,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1852429402, now seen corresponding path program 1 times [2022-11-22 00:34:00,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:00,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406683554] [2022-11-22 00:34:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:00,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7704 trivial. 0 not checked. [2022-11-22 00:34:01,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:01,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406683554] [2022-11-22 00:34:01,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406683554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:01,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:01,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:01,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921243335] [2022-11-22 00:34:01,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:01,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:01,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:01,598 INFO L87 Difference]: Start difference. First operand 30613 states and 43734 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 00:34:04,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:07,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:09,621 INFO L93 Difference]: Finished difference Result 84031 states and 119694 transitions. [2022-11-22 00:34:09,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:09,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 598 [2022-11-22 00:34:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:09,993 INFO L225 Difference]: With dead ends: 84031 [2022-11-22 00:34:09,993 INFO L226 Difference]: Without dead ends: 53507 [2022-11-22 00:34:10,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:10,149 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 2965 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2969 SdHoareTripleChecker+Valid, 7928 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:10,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2969 Valid, 7928 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 866 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:34:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53507 states. [2022-11-22 00:34:13,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53507 to 53472. [2022-11-22 00:34:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53472 states, 31813 states have (on average 1.2916732153522146) internal successors, (41092), 32759 states have internal predecessors, (41092), 17389 states have call successors, (17389), 4273 states have call predecessors, (17389), 4269 states have return successors, (17493), 17205 states have call predecessors, (17493), 17389 states have call successors, (17493) [2022-11-22 00:34:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53472 states to 53472 states and 75974 transitions. [2022-11-22 00:34:13,843 INFO L78 Accepts]: Start accepts. Automaton has 53472 states and 75974 transitions. Word has length 598 [2022-11-22 00:34:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:13,844 INFO L495 AbstractCegarLoop]: Abstraction has 53472 states and 75974 transitions. [2022-11-22 00:34:13,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 00:34:13,845 INFO L276 IsEmpty]: Start isEmpty. Operand 53472 states and 75974 transitions. [2022-11-22 00:34:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-22 00:34:13,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:13,963 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:34:13,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1027583419, now seen corresponding path program 1 times [2022-11-22 00:34:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411827538] [2022-11-22 00:34:13,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8096 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8089 trivial. 0 not checked. [2022-11-22 00:34:15,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:15,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411827538] [2022-11-22 00:34:15,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411827538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:15,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:15,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:15,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146467163] [2022-11-22 00:34:15,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:15,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:15,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:15,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:15,003 INFO L87 Difference]: Start difference. First operand 53472 states and 75974 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-22 00:34:17,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:22,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:24,817 INFO L93 Difference]: Finished difference Result 130637 states and 185564 transitions. [2022-11-22 00:34:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:24,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 599 [2022-11-22 00:34:24,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:25,422 INFO L225 Difference]: With dead ends: 130637 [2022-11-22 00:34:25,422 INFO L226 Difference]: Without dead ends: 77394 [2022-11-22 00:34:25,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:25,667 INFO L413 NwaCegarLoop]: 5944 mSDtfsCounter, 2945 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 9309 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:25,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 9309 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1122 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 00:34:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77394 states. [2022-11-22 00:34:30,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77394 to 77360. [2022-11-22 00:34:30,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77360 states, 46088 states have (on average 1.292657524735289) internal successors, (59576), 47424 states have internal predecessors, (59576), 25036 states have call successors, (25036), 6241 states have call predecessors, (25036), 6235 states have return successors, (25178), 24752 states have call predecessors, (25178), 25036 states have call successors, (25178) [2022-11-22 00:34:31,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77360 states to 77360 states and 109790 transitions. [2022-11-22 00:34:31,184 INFO L78 Accepts]: Start accepts. Automaton has 77360 states and 109790 transitions. Word has length 599 [2022-11-22 00:34:31,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:31,186 INFO L495 AbstractCegarLoop]: Abstraction has 77360 states and 109790 transitions. [2022-11-22 00:34:31,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-22 00:34:31,187 INFO L276 IsEmpty]: Start isEmpty. Operand 77360 states and 109790 transitions. [2022-11-22 00:34:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-11-22 00:34:31,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:31,281 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:31,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:34:31,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:31,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1322503913, now seen corresponding path program 1 times [2022-11-22 00:34:31,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:31,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362752923] [2022-11-22 00:34:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:31,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-22 00:34:32,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:32,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362752923] [2022-11-22 00:34:32,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362752923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:32,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:32,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:32,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174585704] [2022-11-22 00:34:32,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:32,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:32,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:32,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:32,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:32,045 INFO L87 Difference]: Start difference. First operand 77360 states and 109790 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2022-11-22 00:34:34,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:40,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:44,188 INFO L93 Difference]: Finished difference Result 187283 states and 265650 transitions. [2022-11-22 00:34:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:34:44,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 613 [2022-11-22 00:34:44,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:44,855 INFO L225 Difference]: With dead ends: 187283 [2022-11-22 00:34:44,855 INFO L226 Difference]: Without dead ends: 110152 [2022-11-22 00:34:45,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:45,246 INFO L413 NwaCegarLoop]: 6238 mSDtfsCounter, 3192 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:45,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 9574 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1176 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 00:34:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110152 states. [2022-11-22 00:34:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110152 to 110149. [2022-11-22 00:34:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110149 states, 65712 states have (on average 1.29159057706355) internal successors, (84873), 67638 states have internal predecessors, (84873), 35421 states have call successors, (35421), 9027 states have call predecessors, (35421), 9015 states have return successors, (35645), 35001 states have call predecessors, (35645), 35421 states have call successors, (35645) [2022-11-22 00:34:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110149 states to 110149 states and 155939 transitions. [2022-11-22 00:34:51,096 INFO L78 Accepts]: Start accepts. Automaton has 110149 states and 155939 transitions. Word has length 613 [2022-11-22 00:34:51,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:51,097 INFO L495 AbstractCegarLoop]: Abstraction has 110149 states and 155939 transitions. [2022-11-22 00:34:51,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2022-11-22 00:34:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 110149 states and 155939 transitions. [2022-11-22 00:34:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-22 00:34:51,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:51,546 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:51,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:34:51,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:51,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1246709957, now seen corresponding path program 1 times [2022-11-22 00:34:51,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:51,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835165706] [2022-11-22 00:34:51,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:51,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2022-11-22 00:34:52,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:52,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835165706] [2022-11-22 00:34:52,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835165706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:52,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:52,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:34:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308129316] [2022-11-22 00:34:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:52,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:34:52,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:34:52,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:34:52,313 INFO L87 Difference]: Start difference. First operand 110149 states and 155939 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-22 00:34:54,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:34:58,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []