./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_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P --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 7810d8d46e33762f9d4b240bda17e1c52cc5be371b5b52d10d795bc3c3d449fe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:14:58,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:14:58,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:14:58,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:14:58,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:14:58,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:14:58,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:14:58,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:14:58,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:14:58,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:14:58,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:14:58,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:14:58,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:14:58,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:14:58,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:14:58,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:14:58,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:14:58,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:14:58,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:14:58,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:14:58,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:14:58,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:14:58,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:14:58,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:14:58,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:14:58,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:14:58,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:14:58,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:14:58,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:14:58,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:14:58,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:14:58,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:14:58,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:14:58,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:14:58,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:14:58,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:14:58,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:14:58,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:14:58,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:14:58,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:14:58,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:14:58,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:14:58,944 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:14:58,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:14:58,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:14:58,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:14:58,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:14:58,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:14:58,947 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:14:58,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:14:58,948 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:14:58,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:14:58,948 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:14:58,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:14:58,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:14:58,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:14:58,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:14:58,950 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:14:58,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:14:58,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:14:58,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:14:58,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:14:58,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:14:58,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:14:58,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:14:58,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:14:58,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:14:58,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:14:58,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:14:58,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:14:58,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:14:58,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:14:58,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:14:58,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:14:58,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:14:58,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:14:58,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:14:58,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:14:58,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:14:58,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:14:58,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7810d8d46e33762f9d4b240bda17e1c52cc5be371b5b52d10d795bc3c3d449fe [2021-11-21 00:14:59,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:14:59,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:14:59,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:14:59,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:14:59,269 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:14:59,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:14:59,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/data/441d8be2e/f363ff2dfc6e45b987500ca0613db98a/FLAGa9602f049 [2021-11-21 00:15:00,750 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:15:00,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:15:00,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/data/441d8be2e/f363ff2dfc6e45b987500ca0613db98a/FLAGa9602f049 [2021-11-21 00:15:01,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/data/441d8be2e/f363ff2dfc6e45b987500ca0613db98a [2021-11-21 00:15:01,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:15:01,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:15:01,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:15:01,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:15:01,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:15:01,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:15:01" (1/1) ... [2021-11-21 00:15:01,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5473712b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:01, skipping insertion in model container [2021-11-21 00:15:01,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:15:01" (1/1) ... [2021-11-21 00:15:01,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:15:01,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:15:10,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[657888,657901] [2021-11-21 00:15:10,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[658033,658046] [2021-11-21 00:15:10,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:15:10,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:15:11,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[657888,657901] [2021-11-21 00:15:11,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[658033,658046] [2021-11-21 00:15:11,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:15:11,561 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:15:11,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11 WrapperNode [2021-11-21 00:15:11,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:15:11,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:15:11,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:15:11,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:15:11,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:11,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:12,467 INFO L137 Inliner]: procedures = 809, calls = 7779, calls flagged for inlining = 391, calls inlined = 360, statements flattened = 15877 [2021-11-21 00:15:12,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:15:12,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:15:12,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:15:12,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:15:12,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:12,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:12,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:12,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:13,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:13,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:13,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:13,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:15:13,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:15:13,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:15:13,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:15:13,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (1/1) ... [2021-11-21 00:15:13,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:15:13,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:15:13,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:15:13,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:15:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 00:15:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 00:15:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 00:15:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:15:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:15:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-21 00:15:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-21 00:15:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-21 00:15:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-21 00:15:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-21 00:15:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-21 00:15:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-21 00:15:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-21 00:15:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-21 00:15:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-21 00:15:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:15:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:15:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:15:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:15:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:15:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:15:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-21 00:15:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-21 00:15:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-21 00:15:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-21 00:15:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-21 00:15:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-21 00:15:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:15:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:15:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:15:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:15:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-21 00:15:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-21 00:15:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-21 00:15:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-21 00:15:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:15:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:15:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:15:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:15:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-21 00:15:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-21 00:15:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-21 00:15:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-21 00:15:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_104 [2021-11-21 00:15:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_104 [2021-11-21 00:15:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-21 00:15:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-21 00:15:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-21 00:15:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-21 00:15:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:15:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:15:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-21 00:15:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-21 00:15:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 00:15:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-21 00:15:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:15:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:15:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-21 00:15:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-21 00:15:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 00:15:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 00:15:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:15:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:15:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-21 00:15:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-21 00:15:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-21 00:15:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-21 00:15:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-21 00:15:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-21 00:15:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:15:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:15:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:15:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:15:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:15:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 00:15:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 00:15:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:15:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:15:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 00:15:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 00:15:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 00:15:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 00:15:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-21 00:15:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-21 00:15:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-21 00:15:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-21 00:15:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:15:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:15:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:15:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:15:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:15:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:15:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:15:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-21 00:15:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-21 00:15:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:15:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:15:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:15:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:15:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-21 00:15:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-21 00:15:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:15:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:15:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 00:15:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 00:15:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:15:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:15:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:15:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:15:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:15:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:15:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:15:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-21 00:15:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-21 00:15:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-21 00:15:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-21 00:15:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:15:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:15:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-21 00:15:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-21 00:15:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:15:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:15:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-11-21 00:15:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-11-21 00:15:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:15:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:15:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:15:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:15:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-21 00:15:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-21 00:15:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:15:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:15:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-11-21 00:15:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-11-21 00:15:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:15:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:15:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-21 00:15:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-21 00:15:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-21 00:15:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-21 00:15:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:15:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:15:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:15:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 00:15:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 00:15:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:15:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:15:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-21 00:15:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-21 00:15:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:15:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:15:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:15:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-21 00:15:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-21 00:15:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:15:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:15:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-21 00:15:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-21 00:15:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 00:15:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 00:15:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:15:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:15:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-21 00:15:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-21 00:15:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:15:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:15:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 00:15:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 00:15:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:15:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:15:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 00:15:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 00:15:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-21 00:15:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-21 00:15:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 00:15:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 00:15:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:15:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:15:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:15:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-21 00:15:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-21 00:15:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-21 00:15:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-21 00:15:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-21 00:15:13,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-21 00:15:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:15:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 00:15:13,884 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 00:15:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-21 00:15:13,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-21 00:15:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-21 00:15:13,885 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-21 00:15:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-21 00:15:13,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-21 00:15:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:15:13,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:15:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-21 00:15:13,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-21 00:15:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:15:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:15:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:15:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:15:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 00:15:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 00:15:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:15:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:15:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 00:15:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 00:15:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 00:15:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 00:15:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:15:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:15:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-21 00:15:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-21 00:15:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:15:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 00:15:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 00:15:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:15:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:15:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-21 00:15:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-21 00:15:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-21 00:15:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-21 00:15:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_103 [2021-11-21 00:15:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_103 [2021-11-21 00:15:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-21 00:15:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-21 00:15:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-21 00:15:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-21 00:15:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:15:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:15:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:15:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:15:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-21 00:15:13,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-21 00:15:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-21 00:15:13,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-21 00:15:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 00:15:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 00:15:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-21 00:15:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-21 00:15:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-21 00:15:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-21 00:15:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-21 00:15:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-21 00:15:13,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:15:13,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:15:13,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-21 00:15:13,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-21 00:15:13,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-21 00:15:13,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-21 00:15:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-21 00:15:13,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-21 00:15:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:15:13,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:15:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 00:15:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-21 00:15:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-21 00:15:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-21 00:15:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-21 00:15:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 00:15:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 00:15:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:15:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:15:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:15:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:15:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 00:15:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 00:15:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 00:15:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 00:15:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-21 00:15:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-21 00:15:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:15:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:15:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:15:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:15:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-21 00:15:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-21 00:15:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 00:15:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 00:15:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:15:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:15:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 00:15:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 00:15:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 00:15:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 00:15:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-21 00:15:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-21 00:15:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-21 00:15:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-21 00:15:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:15:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:15:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-21 00:15:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-21 00:15:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-21 00:15:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-21 00:15:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-21 00:15:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-21 00:15:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:15:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:15:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-21 00:15:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-21 00:15:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:15:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:15:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:15:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:15:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:15:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:15:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:15:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:15:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:15:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:15:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:15:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-21 00:15:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-21 00:15:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 00:15:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 00:15:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-21 00:15:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-21 00:15:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-21 00:15:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-21 00:15:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:15:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:15:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-21 00:15:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-21 00:15:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-21 00:15:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-21 00:15:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 00:15:13,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 00:15:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:15:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-21 00:15:13,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-21 00:15:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:15:13,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:15:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:15:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-21 00:15:13,911 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-21 00:15:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:15:13,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:15:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 00:15:13,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 00:15:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:15:13,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:15:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:15:13,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:15:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:15:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:15:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-21 00:15:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-21 00:15:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:15:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:15:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-21 00:15:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-21 00:15:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-21 00:15:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-21 00:15:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-21 00:15:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-21 00:15:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-21 00:15:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-21 00:15:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-21 00:15:13,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-21 00:15:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:15:13,915 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:15:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:15:13,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:15:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:15:13,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:15:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:15:13,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:15:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-21 00:15:13,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-21 00:15:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-21 00:15:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-21 00:15:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 00:15:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 00:15:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-21 00:15:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-21 00:15:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 00:15:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 00:15:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-21 00:15:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-21 00:15:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:15:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:15:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 00:15:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 00:15:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-21 00:15:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-21 00:15:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 00:15:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 00:15:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-21 00:15:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-21 00:15:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:15:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:15:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:15:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:15:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-21 00:15:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-21 00:15:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-21 00:15:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-21 00:15:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:15:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:15:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:15:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 00:15:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 00:15:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-21 00:15:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-21 00:15:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 00:15:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 00:15:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-21 00:15:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-21 00:15:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-21 00:15:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-21 00:15:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 00:15:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 00:15:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-21 00:15:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-21 00:15:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-21 00:15:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-21 00:15:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-21 00:15:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-21 00:15:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 00:15:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 00:15:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-21 00:15:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-21 00:15:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 00:15:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 00:15:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-21 00:15:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-21 00:15:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-21 00:15:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-21 00:15:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-21 00:15:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-21 00:15:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:15:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:15:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:15:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:15:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:15:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:15:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 00:15:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 00:15:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:15:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:15:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:15:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-21 00:15:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-21 00:15:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-21 00:15:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-21 00:15:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 00:15:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 00:15:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:15:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:15:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 00:15:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 00:15:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-21 00:15:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-21 00:15:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-21 00:15:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-21 00:15:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-21 00:15:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-21 00:15:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:15:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:15:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-21 00:15:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-21 00:15:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 00:15:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 00:15:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-21 00:15:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-21 00:15:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:15:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:15:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-21 00:15:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-21 00:15:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:15:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:15:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:15:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:15:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:15:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:15:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-21 00:15:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-21 00:15:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 00:15:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 00:15:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-21 00:15:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-21 00:15:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:15:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:15:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:15:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:15:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-21 00:15:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-21 00:15:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-21 00:15:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-21 00:15:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:15:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:15:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-21 00:15:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-21 00:15:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:15:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:15:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:15:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-21 00:15:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-21 00:15:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:15:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:15:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-21 00:15:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-21 00:15:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-21 00:15:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-21 00:15:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-21 00:15:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-21 00:15:15,844 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:15:15,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:15:16,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:15:41,826 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:15:42,623 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:15:49,286 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:15:49,286 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 00:15:49,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:15:49 BoogieIcfgContainer [2021-11-21 00:15:49,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:15:49,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:15:49,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:15:49,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:15:49,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:15:01" (1/3) ... [2021-11-21 00:15:49,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32702b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:15:49, skipping insertion in model container [2021-11-21 00:15:49,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:15:11" (2/3) ... [2021-11-21 00:15:49,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32702b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:15:49, skipping insertion in model container [2021-11-21 00:15:49,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:15:49" (3/3) ... [2021-11-21 00:15:49,306 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:15:49,312 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:15:49,312 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:15:49,378 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:15:49,385 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:15:49,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:15:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 3815 states, 2282 states have (on average 1.3150744960560912) internal successors, (3001), 2345 states have internal predecessors, (3001), 1288 states have call successors, (1288), 244 states have call predecessors, (1288), 243 states have return successors, (1281), 1265 states have call predecessors, (1281), 1281 states have call successors, (1281) [2021-11-21 00:15:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-21 00:15:49,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:15:49,559 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:15:49,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:15:49,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:15:49,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1601349394, now seen corresponding path program 1 times [2021-11-21 00:15:49,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:15:49,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145430831] [2021-11-21 00:15:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:49,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:15:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:15:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 00:15:51,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:15:51,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145430831] [2021-11-21 00:15:51,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145430831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:15:51,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:15:51,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:15:51,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503953195] [2021-11-21 00:15:51,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:15:51,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:15:51,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:15:51,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:15:51,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:15:51,161 INFO L87 Difference]: Start difference. First operand has 3815 states, 2282 states have (on average 1.3150744960560912) internal successors, (3001), 2345 states have internal predecessors, (3001), 1288 states have call successors, (1288), 244 states have call predecessors, (1288), 243 states have return successors, (1281), 1265 states have call predecessors, (1281), 1281 states have call successors, (1281) Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:15:57,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:16:00,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:02,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:06,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:08,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:13,900 INFO L93 Difference]: Finished difference Result 10879 states and 15961 transitions. [2021-11-21 00:16:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:16:13,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 257 [2021-11-21 00:16:13,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:14,001 INFO L225 Difference]: With dead ends: 10879 [2021-11-21 00:16:14,003 INFO L226 Difference]: Without dead ends: 7035 [2021-11-21 00:16:14,038 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:16:14,043 INFO L933 BasicCegarLoop]: 6385 mSDtfsCounter, 4800 mSDsluCounter, 5495 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 11116 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:14,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 11116 Invalid, 1740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1718 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2021-11-21 00:16:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7035 states. [2021-11-21 00:16:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7035 to 7031. [2021-11-21 00:16:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7031 states, 4263 states have (on average 1.316443818906873) internal successors, (5612), 4382 states have internal predecessors, (5612), 2311 states have call successors, (2311), 455 states have call predecessors, (2311), 455 states have return successors, (2313), 2278 states have call predecessors, (2313), 2311 states have call successors, (2313) [2021-11-21 00:16:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7031 states to 7031 states and 10236 transitions. [2021-11-21 00:16:14,679 INFO L78 Accepts]: Start accepts. Automaton has 7031 states and 10236 transitions. Word has length 257 [2021-11-21 00:16:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:14,685 INFO L470 AbstractCegarLoop]: Abstraction has 7031 states and 10236 transitions. [2021-11-21 00:16:14,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:16:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7031 states and 10236 transitions. [2021-11-21 00:16:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-21 00:16:14,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:14,708 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 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] [2021-11-21 00:16:14,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:16:14,708 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:16:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:14,712 INFO L85 PathProgramCache]: Analyzing trace with hash 276918540, now seen corresponding path program 1 times [2021-11-21 00:16:14,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:14,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778409031] [2021-11-21 00:16:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:14,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2021-11-21 00:16:15,623 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:15,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778409031] [2021-11-21 00:16:15,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778409031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:15,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:15,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:16:15,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290064032] [2021-11-21 00:16:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:15,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:15,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:15,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:15,628 INFO L87 Difference]: Start difference. First operand 7031 states and 10236 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:16:18,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:16:21,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:23,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:30,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:34,639 INFO L93 Difference]: Finished difference Result 17106 states and 24806 transitions. [2021-11-21 00:16:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:16:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 253 [2021-11-21 00:16:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:34,751 INFO L225 Difference]: With dead ends: 17106 [2021-11-21 00:16:34,751 INFO L226 Difference]: Without dead ends: 10112 [2021-11-21 00:16:34,800 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:16:34,801 INFO L933 BasicCegarLoop]: 5736 mSDtfsCounter, 3211 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 10392 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:34,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 10392 Invalid, 1677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1667 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2021-11-21 00:16:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10112 states. [2021-11-21 00:16:35,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10112 to 10104. [2021-11-21 00:16:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10104 states, 6135 states have (on average 1.3136104319478403) internal successors, (8059), 6306 states have internal predecessors, (8059), 3271 states have call successors, (3271), 697 states have call predecessors, (3271), 696 states have return successors, (3279), 3222 states have call predecessors, (3279), 3271 states have call successors, (3279) [2021-11-21 00:16:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10104 states to 10104 states and 14609 transitions. [2021-11-21 00:16:35,500 INFO L78 Accepts]: Start accepts. Automaton has 10104 states and 14609 transitions. Word has length 253 [2021-11-21 00:16:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 10104 states and 14609 transitions. [2021-11-21 00:16:35,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 00:16:35,503 INFO L276 IsEmpty]: Start isEmpty. Operand 10104 states and 14609 transitions. [2021-11-21 00:16:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-21 00:16:35,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:35,520 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 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] [2021-11-21 00:16:35,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:16:35,521 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:16:35,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:35,522 INFO L85 PathProgramCache]: Analyzing trace with hash 548528340, now seen corresponding path program 1 times [2021-11-21 00:16:35,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711339145] [2021-11-21 00:16:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:35,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2021-11-21 00:16:36,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:36,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711339145] [2021-11-21 00:16:36,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711339145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:36,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:36,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:16:36,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620103118] [2021-11-21 00:16:36,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:36,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:16:36,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:16:36,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:16:36,181 INFO L87 Difference]: Start difference. First operand 10104 states and 14609 transitions. 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, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-21 00:16:39,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:16:41,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:43,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:46,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:48,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:57,497 INFO L93 Difference]: Finished difference Result 24257 states and 35107 transitions. [2021-11-21 00:16:57,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:16:57,498 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, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 304 [2021-11-21 00:16:57,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:57,635 INFO L225 Difference]: With dead ends: 24257 [2021-11-21 00:16:57,636 INFO L226 Difference]: Without dead ends: 14190 [2021-11-21 00:16:57,697 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:16:57,699 INFO L933 BasicCegarLoop]: 8752 mSDtfsCounter, 4731 mSDsluCounter, 5426 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4733 SdHoareTripleChecker+Valid, 13415 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:57,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4733 Valid, 13415 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2286 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2021-11-21 00:16:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14190 states. [2021-11-21 00:16:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14190 to 14185. [2021-11-21 00:16:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14185 states, 8641 states have (on average 1.3168614743663927) internal successors, (11379), 8880 states have internal predecessors, (11379), 4565 states have call successors, (4565), 978 states have call predecessors, (4565), 977 states have return successors, (4575), 4496 states have call predecessors, (4575), 4565 states have call successors, (4575) [2021-11-21 00:16:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14185 states to 14185 states and 20519 transitions. [2021-11-21 00:16:58,655 INFO L78 Accepts]: Start accepts. Automaton has 14185 states and 20519 transitions. Word has length 304 [2021-11-21 00:16:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:58,657 INFO L470 AbstractCegarLoop]: Abstraction has 14185 states and 20519 transitions. [2021-11-21 00:16:58,658 INFO L471 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, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-21 00:16:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14185 states and 20519 transitions. [2021-11-21 00:16:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-21 00:16:58,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:58,680 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:58,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:16:58,681 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:16:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:58,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1904039553, now seen corresponding path program 1 times [2021-11-21 00:16:58,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:58,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205377987] [2021-11-21 00:16:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:58,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1581 trivial. 0 not checked. [2021-11-21 00:16:59,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:59,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205377987] [2021-11-21 00:16:59,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205377987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:59,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:59,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:16:59,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870840877] [2021-11-21 00:16:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:59,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:16:59,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:16:59,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:59,448 INFO L87 Difference]: Start difference. First operand 14185 states and 20519 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-21 00:17:02,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:17:05,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:17:07,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:17:09,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:12,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:13,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:16,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:17,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:26,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:30,153 INFO L93 Difference]: Finished difference Result 28381 states and 41330 transitions. [2021-11-21 00:17:30,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 366 [2021-11-21 00:17:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:30,245 INFO L225 Difference]: With dead ends: 28381 [2021-11-21 00:17:30,246 INFO L226 Difference]: Without dead ends: 14233 [2021-11-21 00:17:30,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:30,327 INFO L933 BasicCegarLoop]: 4716 mSDtfsCounter, 5 mSDsluCounter, 16462 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18851 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:30,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 18851 Invalid, 3123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 30.1s Time] [2021-11-21 00:17:30,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14233 states. [2021-11-21 00:17:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14233 to 14209. [2021-11-21 00:17:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14209 states, 8659 states have (on average 1.3162027947799977) internal successors, (11397), 8898 states have internal predecessors, (11397), 4565 states have call successors, (4565), 978 states have call predecessors, (4565), 983 states have return successors, (4657), 4502 states have call predecessors, (4657), 4565 states have call successors, (4657) [2021-11-21 00:17:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14209 states to 14209 states and 20619 transitions. [2021-11-21 00:17:31,578 INFO L78 Accepts]: Start accepts. Automaton has 14209 states and 20619 transitions. Word has length 366 [2021-11-21 00:17:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:31,583 INFO L470 AbstractCegarLoop]: Abstraction has 14209 states and 20619 transitions. [2021-11-21 00:17:31,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-21 00:17:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 14209 states and 20619 transitions. [2021-11-21 00:17:31,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-21 00:17:31,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:31,613 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:31,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:17:31,613 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:17:31,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1671583233, now seen corresponding path program 1 times [2021-11-21 00:17:31,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:31,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657258079] [2021-11-21 00:17:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:31,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2021-11-21 00:17:32,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:32,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657258079] [2021-11-21 00:17:32,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657258079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:32,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:32,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:32,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997184053] [2021-11-21 00:17:32,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:32,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:32,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:32,165 INFO L87 Difference]: Start difference. First operand 14209 states and 20619 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 00:17:37,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:17:40,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:46,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:48,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:54,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:59,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:03,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:04,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:06,789 INFO L93 Difference]: Finished difference Result 35678 states and 51655 transitions. [2021-11-21 00:18:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:18:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 398 [2021-11-21 00:18:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:07,050 INFO L225 Difference]: With dead ends: 35678 [2021-11-21 00:18:07,050 INFO L226 Difference]: Without dead ends: 21506 [2021-11-21 00:18:07,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:07,101 INFO L933 BasicCegarLoop]: 9911 mSDtfsCounter, 8078 mSDsluCounter, 7748 mSDsCounter, 0 mSdLazyCounter, 5223 mSolverCounterSat, 934 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8083 SdHoareTripleChecker+Valid, 16250 SdHoareTripleChecker+Invalid, 6163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 5223 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:07,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8083 Valid, 16250 Invalid, 6163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [934 Valid, 5223 Invalid, 6 Unknown, 0 Unchecked, 33.7s Time] [2021-11-21 00:18:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21506 states. [2021-11-21 00:18:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21506 to 21498. [2021-11-21 00:18:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21498 states, 13122 states have (on average 1.3159579332418838) internal successors, (17268), 13491 states have internal predecessors, (17268), 6822 states have call successors, (6822), 1543 states have call predecessors, (6822), 1552 states have return successors, (6969), 6727 states have call predecessors, (6969), 6822 states have call successors, (6969) [2021-11-21 00:18:08,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21498 states to 21498 states and 31059 transitions. [2021-11-21 00:18:08,372 INFO L78 Accepts]: Start accepts. Automaton has 21498 states and 31059 transitions. Word has length 398 [2021-11-21 00:18:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:08,373 INFO L470 AbstractCegarLoop]: Abstraction has 21498 states and 31059 transitions. [2021-11-21 00:18:08,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 00:18:08,374 INFO L276 IsEmpty]: Start isEmpty. Operand 21498 states and 31059 transitions. [2021-11-21 00:18:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-11-21 00:18:08,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:08,410 INFO L514 BasicCegarLoop]: trace histogram [28, 19, 19, 19, 19, 19, 19, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:08,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:18:08,410 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:18:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:08,412 INFO L85 PathProgramCache]: Analyzing trace with hash -51497267, now seen corresponding path program 1 times [2021-11-21 00:18:08,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177678362] [2021-11-21 00:18:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:08,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1986 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1986 trivial. 0 not checked. [2021-11-21 00:18:09,285 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:09,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177678362] [2021-11-21 00:18:09,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177678362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:09,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:09,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-21 00:18:09,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570379737] [2021-11-21 00:18:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:09,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 00:18:09,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 00:18:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:18:09,287 INFO L87 Difference]: Start difference. First operand 21498 states and 31059 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 5 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 00:18:16,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:18:19,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:26,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:29,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:37,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:40,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:43,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:46,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:48,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:49,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:57,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:04,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:04,575 INFO L93 Difference]: Finished difference Result 43035 states and 62492 transitions. [2021-11-21 00:19:04,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 00:19:04,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 5 states have call predecessors, (48), 2 states have call successors, (48) Word has length 438 [2021-11-21 00:19:04,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:04,693 INFO L225 Difference]: With dead ends: 43035 [2021-11-21 00:19:04,693 INFO L226 Difference]: Without dead ends: 21574 [2021-11-21 00:19:04,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-21 00:19:04,791 INFO L933 BasicCegarLoop]: 4734 mSDtfsCounter, 6 mSDsluCounter, 49533 mSDsCounter, 0 mSdLazyCounter, 7808 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47315 SdHoareTripleChecker+Invalid, 7815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7808 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:04,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 47315 Invalid, 7815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 7808 Invalid, 5 Unknown, 0 Unchecked, 54.4s Time] [2021-11-21 00:19:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21574 states. [2021-11-21 00:19:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21574 to 21556. [2021-11-21 00:19:05,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21556 states, 13165 states have (on average 1.3141663501709078) internal successors, (17301), 13535 states have internal predecessors, (17301), 6822 states have call successors, (6822), 1543 states have call predecessors, (6822), 1567 states have return successors, (7008), 6741 states have call predecessors, (7008), 6822 states have call successors, (7008) [2021-11-21 00:19:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21556 states to 21556 states and 31131 transitions. [2021-11-21 00:19:06,004 INFO L78 Accepts]: Start accepts. Automaton has 21556 states and 31131 transitions. Word has length 438 [2021-11-21 00:19:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:06,007 INFO L470 AbstractCegarLoop]: Abstraction has 21556 states and 31131 transitions. [2021-11-21 00:19:06,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 5 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 00:19:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 21556 states and 31131 transitions. [2021-11-21 00:19:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-21 00:19:06,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:06,049 INFO L514 BasicCegarLoop]: trace histogram [28, 19, 19, 19, 19, 19, 19, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:06,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:19:06,049 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:06,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1387054513, now seen corresponding path program 1 times [2021-11-21 00:19:06,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:19:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160850911] [2021-11-21 00:19:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:06,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:19:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1986 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1986 trivial. 0 not checked. [2021-11-21 00:19:07,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:19:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160850911] [2021-11-21 00:19:07,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160850911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:19:07,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:19:07,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:19:07,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027148973] [2021-11-21 00:19:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:19:07,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:19:07,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:19:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:19:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:19:07,042 INFO L87 Difference]: Start difference. First operand 21556 states and 31131 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-21 00:19:10,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:19:14,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:19,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:21,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:23,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:26,316 INFO L93 Difference]: Finished difference Result 43155 states and 62646 transitions. [2021-11-21 00:19:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:19:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 449 [2021-11-21 00:19:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:26,435 INFO L225 Difference]: With dead ends: 43155 [2021-11-21 00:19:26,435 INFO L226 Difference]: Without dead ends: 21636 [2021-11-21 00:19:26,527 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:19:26,528 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 5 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9429 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:26,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 9429 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2021-11-21 00:19:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21636 states. [2021-11-21 00:19:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21636 to 21566. [2021-11-21 00:19:27,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21566 states, 13175 states have (on average 1.3139278937381405) internal successors, (17311), 13545 states have internal predecessors, (17311), 6822 states have call successors, (6822), 1543 states have call predecessors, (6822), 1567 states have return successors, (7008), 6741 states have call predecessors, (7008), 6822 states have call successors, (7008) [2021-11-21 00:19:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21566 states to 21566 states and 31141 transitions. [2021-11-21 00:19:27,759 INFO L78 Accepts]: Start accepts. Automaton has 21566 states and 31141 transitions. Word has length 449 [2021-11-21 00:19:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:27,761 INFO L470 AbstractCegarLoop]: Abstraction has 21566 states and 31141 transitions. [2021-11-21 00:19:27,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-21 00:19:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 21566 states and 31141 transitions. [2021-11-21 00:19:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-21 00:19:27,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:27,797 INFO L514 BasicCegarLoop]: trace histogram [28, 19, 19, 19, 19, 19, 19, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:27,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:19:27,797 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2140565692, now seen corresponding path program 1 times [2021-11-21 00:19:27,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:19:27,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393991813] [2021-11-21 00:19:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:27,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:19:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-11-21 00:19:28,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:19:28,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393991813] [2021-11-21 00:19:28,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393991813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:19:28,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:19:28,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:19:28,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777672070] [2021-11-21 00:19:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:19:28,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:19:28,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:19:28,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:19:28,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:19:28,798 INFO L87 Difference]: Start difference. First operand 21566 states and 31141 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-21 00:19:34,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:19:37,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:42,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:44,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:46,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:52,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:55,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:57,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:19:59,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:02,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:20:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:03,627 INFO L93 Difference]: Finished difference Result 47222 states and 68236 transitions. [2021-11-21 00:20:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:20:03,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 484 [2021-11-21 00:20:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:03,773 INFO L225 Difference]: With dead ends: 47222 [2021-11-21 00:20:03,774 INFO L226 Difference]: Without dead ends: 25693 [2021-11-21 00:20:03,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:20:03,856 INFO L933 BasicCegarLoop]: 7274 mSDtfsCounter, 4760 mSDsluCounter, 8042 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 20 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 13872 SdHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:03,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4762 Valid, 13872 Invalid, 4803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4776 Invalid, 7 Unknown, 0 Unchecked, 34.0s Time] [2021-11-21 00:20:03,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25693 states. [2021-11-21 00:20:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25693 to 25684. [2021-11-21 00:20:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25684 states, 15711 states have (on average 1.3155750747883648) internal successors, (20669), 16149 states have internal predecessors, (20669), 8115 states have call successors, (8115), 1828 states have call predecessors, (8115), 1856 states have return successors, (8334), 8018 states have call predecessors, (8334), 8115 states have call successors, (8334) [2021-11-21 00:20:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25684 states to 25684 states and 37118 transitions. [2021-11-21 00:20:05,225 INFO L78 Accepts]: Start accepts. Automaton has 25684 states and 37118 transitions. Word has length 484 [2021-11-21 00:20:05,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:05,226 INFO L470 AbstractCegarLoop]: Abstraction has 25684 states and 37118 transitions. [2021-11-21 00:20:05,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-21 00:20:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 25684 states and 37118 transitions. [2021-11-21 00:20:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-21 00:20:05,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:05,260 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:05,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:20:05,260 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash -455714584, now seen corresponding path program 1 times [2021-11-21 00:20:05,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948062788] [2021-11-21 00:20:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:05,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2232 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2021-11-21 00:20:06,325 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:06,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948062788] [2021-11-21 00:20:06,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948062788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:06,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:06,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:20:06,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806005676] [2021-11-21 00:20:06,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:06,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:20:06,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:20:06,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:20:06,328 INFO L87 Difference]: Start difference. First operand 25684 states and 37118 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-21 00:20:10,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:20:13,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:17,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:19,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:24,344 INFO L93 Difference]: Finished difference Result 55093 states and 80136 transitions. [2021-11-21 00:20:24,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:20:24,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 455 [2021-11-21 00:20:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:24,495 INFO L225 Difference]: With dead ends: 55093 [2021-11-21 00:20:24,495 INFO L226 Difference]: Without dead ends: 29446 [2021-11-21 00:20:24,585 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:20:24,587 INFO L933 BasicCegarLoop]: 5173 mSDtfsCounter, 599 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:24,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 9930 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1612 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-11-21 00:20:24,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29446 states. [2021-11-21 00:20:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29446 to 25686. [2021-11-21 00:20:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25686 states, 15713 states have (on average 1.3155349074015146) internal successors, (20671), 16151 states have internal predecessors, (20671), 8115 states have call successors, (8115), 1828 states have call predecessors, (8115), 1856 states have return successors, (8334), 8018 states have call predecessors, (8334), 8115 states have call successors, (8334) [2021-11-21 00:20:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25686 states to 25686 states and 37120 transitions. [2021-11-21 00:20:26,024 INFO L78 Accepts]: Start accepts. Automaton has 25686 states and 37120 transitions. Word has length 455 [2021-11-21 00:20:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:26,025 INFO L470 AbstractCegarLoop]: Abstraction has 25686 states and 37120 transitions. [2021-11-21 00:20:26,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-21 00:20:26,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25686 states and 37120 transitions. [2021-11-21 00:20:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-21 00:20:26,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:26,060 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:26,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:20:26,061 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1427320516, now seen corresponding path program 1 times [2021-11-21 00:20:26,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:26,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836407298] [2021-11-21 00:20:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:26,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2230 trivial. 0 not checked. [2021-11-21 00:20:26,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836407298] [2021-11-21 00:20:26,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836407298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:26,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:26,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:20:26,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53942014] [2021-11-21 00:20:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:26,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:20:26,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:20:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:20:26,986 INFO L87 Difference]: Start difference. First operand 25686 states and 37120 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-21 00:20:31,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:20:35,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:37,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:39,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:44,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:46,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:20:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:55,186 INFO L93 Difference]: Finished difference Result 58931 states and 86211 transitions. [2021-11-21 00:20:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:20:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 457 [2021-11-21 00:20:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:55,329 INFO L225 Difference]: With dead ends: 58931 [2021-11-21 00:20:55,329 INFO L226 Difference]: Without dead ends: 33282 [2021-11-21 00:20:55,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:20:55,403 INFO L933 BasicCegarLoop]: 6177 mSDtfsCounter, 1227 mSDsluCounter, 12119 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 516 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 16695 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:55,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1492 Valid, 16695 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2647 Invalid, 5 Unknown, 0 Unchecked, 27.1s Time] [2021-11-21 00:20:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33282 states. [2021-11-21 00:20:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33282 to 25690. [2021-11-21 00:20:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25690 states, 15717 states have (on average 1.3154546032957943) internal successors, (20675), 16155 states have internal predecessors, (20675), 8115 states have call successors, (8115), 1828 states have call predecessors, (8115), 1856 states have return successors, (8334), 8018 states have call predecessors, (8334), 8115 states have call successors, (8334) [2021-11-21 00:20:57,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25690 states to 25690 states and 37124 transitions. [2021-11-21 00:20:57,330 INFO L78 Accepts]: Start accepts. Automaton has 25690 states and 37124 transitions. Word has length 457 [2021-11-21 00:20:57,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:57,345 INFO L470 AbstractCegarLoop]: Abstraction has 25690 states and 37124 transitions. [2021-11-21 00:20:57,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-21 00:20:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 25690 states and 37124 transitions. [2021-11-21 00:20:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-11-21 00:20:57,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:57,394 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:57,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 00:20:57,395 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash -249595906, now seen corresponding path program 1 times [2021-11-21 00:20:57,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:57,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339638378] [2021-11-21 00:20:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:57,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2021-11-21 00:20:58,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:58,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339638378] [2021-11-21 00:20:58,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339638378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:58,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:58,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:20:58,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057740223] [2021-11-21 00:20:58,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:58,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:20:58,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:20:58,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:20:58,479 INFO L87 Difference]: Start difference. First operand 25690 states and 37124 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 00:21:03,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:21:08,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:10,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:14,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:16,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:21:25,211 INFO L93 Difference]: Finished difference Result 51487 states and 75530 transitions. [2021-11-21 00:21:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:21:25,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 458 [2021-11-21 00:21:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:21:25,312 INFO L225 Difference]: With dead ends: 51487 [2021-11-21 00:21:25,313 INFO L226 Difference]: Without dead ends: 25834 [2021-11-21 00:21:25,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:21:25,397 INFO L933 BasicCegarLoop]: 4738 mSDtfsCounter, 5 mSDsluCounter, 16528 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18942 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:21:25,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 18942 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3115 Invalid, 3 Unknown, 0 Unchecked, 25.6s Time] [2021-11-21 00:21:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25834 states. [2021-11-21 00:21:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25834 to 25738. [2021-11-21 00:21:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25738 states, 15753 states have (on average 1.3147337015171714) internal successors, (20711), 16191 states have internal predecessors, (20711), 8115 states have call successors, (8115), 1828 states have call predecessors, (8115), 1868 states have return successors, (8358), 8030 states have call predecessors, (8358), 8115 states have call successors, (8358) [2021-11-21 00:21:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25738 states to 25738 states and 37184 transitions. [2021-11-21 00:21:26,554 INFO L78 Accepts]: Start accepts. Automaton has 25738 states and 37184 transitions. Word has length 458 [2021-11-21 00:21:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:21:26,555 INFO L470 AbstractCegarLoop]: Abstraction has 25738 states and 37184 transitions. [2021-11-21 00:21:26,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 00:21:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 25738 states and 37184 transitions. [2021-11-21 00:21:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-21 00:21:26,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:21:26,582 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:21:26,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:21:26,584 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:21:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:21:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1122475525, now seen corresponding path program 1 times [2021-11-21 00:21:26,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:21:26,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740868196] [2021-11-21 00:21:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:21:26,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:21:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:21:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1944 trivial. 0 not checked. [2021-11-21 00:21:27,703 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:21:27,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740868196] [2021-11-21 00:21:27,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740868196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:21:27,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:21:27,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-21 00:21:27,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708618792] [2021-11-21 00:21:27,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:21:27,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:21:27,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:21:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:21:27,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:21:27,705 INFO L87 Difference]: Start difference. First operand 25738 states and 37184 transitions. Second operand has 12 states, 11 states have (on average 13.0) internal successors, (143), 9 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-21 00:21:35,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:21:40,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:41,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:46,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:51,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:21:54,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:00,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:02,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:04,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:06,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:09,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:11,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:13,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:15,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:16,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:18,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:21,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:22,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:25,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:29,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:22:41,957 INFO L93 Difference]: Finished difference Result 51599 states and 75007 transitions. [2021-11-21 00:22:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:22:41,958 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 9 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) Word has length 462 [2021-11-21 00:22:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:22:42,076 INFO L225 Difference]: With dead ends: 51599 [2021-11-21 00:22:42,076 INFO L226 Difference]: Without dead ends: 25898 [2021-11-21 00:22:42,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-21 00:22:42,157 INFO L933 BasicCegarLoop]: 4724 mSDtfsCounter, 26 mSDsluCounter, 54903 mSDsCounter, 0 mSdLazyCounter, 8594 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 51915 SdHoareTripleChecker+Invalid, 8607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8594 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:22:42,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 51915 Invalid, 8607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8594 Invalid, 11 Unknown, 0 Unchecked, 73.2s Time] [2021-11-21 00:22:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25898 states. [2021-11-21 00:22:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25898 to 25802. [2021-11-21 00:22:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25802 states, 15797 states have (on average 1.3138570614673672) internal successors, (20755), 16235 states have internal predecessors, (20755), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1880 states have return successors, (8478), 8050 states have call predecessors, (8478), 8123 states have call successors, (8478) [2021-11-21 00:22:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25802 states to 25802 states and 37356 transitions. [2021-11-21 00:22:43,875 INFO L78 Accepts]: Start accepts. Automaton has 25802 states and 37356 transitions. Word has length 462 [2021-11-21 00:22:43,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:22:43,877 INFO L470 AbstractCegarLoop]: Abstraction has 25802 states and 37356 transitions. [2021-11-21 00:22:43,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 9 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-21 00:22:43,877 INFO L276 IsEmpty]: Start isEmpty. Operand 25802 states and 37356 transitions. [2021-11-21 00:22:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-21 00:22:43,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:22:43,900 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:22:43,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:22:43,901 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:22:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:22:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1359820554, now seen corresponding path program 1 times [2021-11-21 00:22:43,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:22:43,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202980043] [2021-11-21 00:22:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:43,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2227 trivial. 0 not checked. [2021-11-21 00:22:44,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:44,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202980043] [2021-11-21 00:22:44,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202980043] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:22:44,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445892913] [2021-11-21 00:22:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:44,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:22:44,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:22:44,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:22:44,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:22:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:48,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 10526 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:22:48,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:22:49,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2230 trivial. 0 not checked. [2021-11-21 00:22:49,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:22:49,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445892913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:22:49,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:22:49,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-21 00:22:49,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009408284] [2021-11-21 00:22:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:22:49,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:22:49,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:22:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:22:49,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:22:49,469 INFO L87 Difference]: Start difference. First operand 25802 states and 37356 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-21 00:22:52,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:22:54,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:22:56,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:01,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:03,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:05,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:08,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:10,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:23:10,610 INFO L93 Difference]: Finished difference Result 51675 states and 76847 transitions. [2021-11-21 00:23:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:23:10,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 470 [2021-11-21 00:23:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:23:10,778 INFO L225 Difference]: With dead ends: 51675 [2021-11-21 00:23:10,778 INFO L226 Difference]: Without dead ends: 25910 [2021-11-21 00:23:10,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:23:10,911 INFO L933 BasicCegarLoop]: 4714 mSDtfsCounter, 7 mSDsluCounter, 5486 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:23:10,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 9425 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 4 Unknown, 0 Unchecked, 20.3s Time] [2021-11-21 00:23:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25910 states. [2021-11-21 00:23:12,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25910 to 25814. [2021-11-21 00:23:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25814 states, 15809 states have (on average 1.3136188247200962) internal successors, (20767), 16247 states have internal predecessors, (20767), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1880 states have return successors, (8478), 8050 states have call predecessors, (8478), 8123 states have call successors, (8478) [2021-11-21 00:23:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25814 states to 25814 states and 37368 transitions. [2021-11-21 00:23:12,331 INFO L78 Accepts]: Start accepts. Automaton has 25814 states and 37368 transitions. Word has length 470 [2021-11-21 00:23:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:23:12,335 INFO L470 AbstractCegarLoop]: Abstraction has 25814 states and 37368 transitions. [2021-11-21 00:23:12,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-21 00:23:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 25814 states and 37368 transitions. [2021-11-21 00:23:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-21 00:23:12,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:23:12,362 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:23:12,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:23:12,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2df3a66-323b-48d1-92f1-d9f34f7f121f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:23:12,576 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:23:12,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:23:12,576 INFO L85 PathProgramCache]: Analyzing trace with hash -230100233, now seen corresponding path program 1 times [2021-11-21 00:23:12,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:23:12,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9838180] [2021-11-21 00:23:12,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:12,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:23:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2232 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2021-11-21 00:23:13,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:23:13,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9838180] [2021-11-21 00:23:13,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9838180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:23:13,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:23:13,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:23:13,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506541701] [2021-11-21 00:23:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:23:13,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:23:13,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:23:13,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:23:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:23:13,512 INFO L87 Difference]: Start difference. First operand 25814 states and 37368 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-21 00:23:17,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:23:19,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:23:20,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:23:22,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:24,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:26,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:27,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:33,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:35,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:37,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:38,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:47,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:48,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:23:48,357 INFO L93 Difference]: Finished difference Result 59187 states and 86707 transitions. [2021-11-21 00:23:48,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:23:48,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 475 [2021-11-21 00:23:48,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:23:48,500 INFO L225 Difference]: With dead ends: 59187 [2021-11-21 00:23:48,500 INFO L226 Difference]: Without dead ends: 33410 [2021-11-21 00:23:48,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:23:48,583 INFO L933 BasicCegarLoop]: 6153 mSDtfsCounter, 1227 mSDsluCounter, 12085 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 517 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 16635 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:23:48,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1492 Valid, 16635 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 2647 Invalid, 4 Unknown, 0 Unchecked, 33.5s Time] [2021-11-21 00:23:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33410 states. [2021-11-21 00:23:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33410 to 25814. [2021-11-21 00:23:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25814 states, 15809 states have (on average 1.3136188247200962) internal successors, (20767), 16247 states have internal predecessors, (20767), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1880 states have return successors, (8478), 8050 states have call predecessors, (8478), 8123 states have call successors, (8478) [2021-11-21 00:23:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25814 states to 25814 states and 37368 transitions. [2021-11-21 00:23:49,994 INFO L78 Accepts]: Start accepts. Automaton has 25814 states and 37368 transitions. Word has length 475 [2021-11-21 00:23:49,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:23:49,995 INFO L470 AbstractCegarLoop]: Abstraction has 25814 states and 37368 transitions. [2021-11-21 00:23:49,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-21 00:23:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 25814 states and 37368 transitions. [2021-11-21 00:23:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-21 00:23:50,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:23:50,016 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:23:50,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 00:23:50,017 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:23:50,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:23:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1606655600, now seen corresponding path program 1 times [2021-11-21 00:23:50,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:23:50,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916834086] [2021-11-21 00:23:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:50,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:23:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1944 trivial. 0 not checked. [2021-11-21 00:23:50,998 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:23:50,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916834086] [2021-11-21 00:23:50,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916834086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:23:50,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:23:50,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-21 00:23:50,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410413646] [2021-11-21 00:23:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:23:51,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:23:51,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:23:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:23:51,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:23:51,001 INFO L87 Difference]: Start difference. First operand 25814 states and 37368 transitions. Second operand has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 9 states have internal predecessors, (151), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-21 00:23:59,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:01,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:24:13,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:20,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:23,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:25,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:28,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:30,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:33,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:34,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:37,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:42,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:44,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:46,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:51,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:56,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:00,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:25:00,969 INFO L93 Difference]: Finished difference Result 51817 states and 75512 transitions. [2021-11-21 00:25:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:25:00,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 9 states have internal predecessors, (151), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) Word has length 470 [2021-11-21 00:25:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:25:01,089 INFO L225 Difference]: With dead ends: 51817 [2021-11-21 00:25:01,089 INFO L226 Difference]: Without dead ends: 26040 [2021-11-21 00:25:01,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-21 00:25:01,170 INFO L933 BasicCegarLoop]: 4723 mSDtfsCounter, 28 mSDsluCounter, 54895 mSDsCounter, 0 mSdLazyCounter, 8598 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 51906 SdHoareTripleChecker+Invalid, 8607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8598 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:25:01,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 51906 Invalid, 8607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 8598 Invalid, 6 Unknown, 0 Unchecked, 68.7s Time] [2021-11-21 00:25:01,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26040 states. [2021-11-21 00:25:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26040 to 25814. [2021-11-21 00:25:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25814 states, 15809 states have (on average 1.3136188247200962) internal successors, (20767), 16247 states have internal predecessors, (20767), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1880 states have return successors, (8478), 8050 states have call predecessors, (8478), 8123 states have call successors, (8478) [2021-11-21 00:25:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25814 states to 25814 states and 37368 transitions. [2021-11-21 00:25:02,391 INFO L78 Accepts]: Start accepts. Automaton has 25814 states and 37368 transitions. Word has length 470 [2021-11-21 00:25:02,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:25:02,392 INFO L470 AbstractCegarLoop]: Abstraction has 25814 states and 37368 transitions. [2021-11-21 00:25:02,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 9 states have internal predecessors, (151), 3 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 6 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-21 00:25:02,392 INFO L276 IsEmpty]: Start isEmpty. Operand 25814 states and 37368 transitions. [2021-11-21 00:25:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-21 00:25:02,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:25:02,406 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:25:02,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 00:25:02,407 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:25:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:25:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash 555545604, now seen corresponding path program 1 times [2021-11-21 00:25:02,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:25:02,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695222531] [2021-11-21 00:25:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:25:02,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:25:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:25:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-11-21 00:25:03,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:25:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695222531] [2021-11-21 00:25:03,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695222531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:25:03,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:25:03,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-21 00:25:03,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584491609] [2021-11-21 00:25:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:25:03,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 00:25:03,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:25:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 00:25:03,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:25:03,406 INFO L87 Difference]: Start difference. First operand 25814 states and 37368 transitions. Second operand has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 3 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (62), 7 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-21 00:25:13,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:15,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:25:27,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:29,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:33,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:41,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:42,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:44,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:46,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:47,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:50,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:52,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:55,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:57,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:59,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:02,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:14,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:24,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:26:24,855 INFO L93 Difference]: Finished difference Result 51929 states and 76123 transitions. [2021-11-21 00:26:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:26:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 3 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (62), 7 states have call predecessors, (62), 3 states have call successors, (62) Word has length 474 [2021-11-21 00:26:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:26:24,976 INFO L225 Difference]: With dead ends: 51929 [2021-11-21 00:26:24,976 INFO L226 Difference]: Without dead ends: 26152 [2021-11-21 00:26:25,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-21 00:26:25,063 INFO L933 BasicCegarLoop]: 4721 mSDtfsCounter, 28 mSDsluCounter, 65860 mSDsCounter, 0 mSdLazyCounter, 10181 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 61325 SdHoareTripleChecker+Invalid, 10195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10181 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:26:25,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 61325 Invalid, 10195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 10181 Invalid, 9 Unknown, 0 Unchecked, 80.2s Time] [2021-11-21 00:26:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26152 states. [2021-11-21 00:26:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26152 to 25862. [2021-11-21 00:26:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25862 states, 15845 states have (on average 1.3129062795834647) internal successors, (20803), 16283 states have internal predecessors, (20803), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1892 states have return successors, (8744), 8062 states have call predecessors, (8744), 8123 states have call successors, (8744) [2021-11-21 00:26:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25862 states to 25862 states and 37670 transitions. [2021-11-21 00:26:26,185 INFO L78 Accepts]: Start accepts. Automaton has 25862 states and 37670 transitions. Word has length 474 [2021-11-21 00:26:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:26:26,185 INFO L470 AbstractCegarLoop]: Abstraction has 25862 states and 37670 transitions. [2021-11-21 00:26:26,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 10 states have internal predecessors, (150), 3 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (62), 7 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-21 00:26:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 25862 states and 37670 transitions. [2021-11-21 00:26:26,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-21 00:26:26,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:26:26,199 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:26:26,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 00:26:26,199 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:26:26,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:26:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1799866341, now seen corresponding path program 1 times [2021-11-21 00:26:26,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:26:26,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299456164] [2021-11-21 00:26:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:26:26,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:26:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:26:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-11-21 00:26:27,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:26:27,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299456164] [2021-11-21 00:26:27,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299456164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:26:27,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:26:27,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:26:27,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12038377] [2021-11-21 00:26:27,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:26:27,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:26:27,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:26:27,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:26:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:26:27,127 INFO L87 Difference]: Start difference. First operand 25862 states and 37670 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-21 00:26:31,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:36,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:42,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:26:44,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:46,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:48,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:50,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:55,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:27:01,755 INFO L93 Difference]: Finished difference Result 51687 states and 75818 transitions. [2021-11-21 00:27:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:27:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) Word has length 475 [2021-11-21 00:27:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:27:01,874 INFO L225 Difference]: With dead ends: 51687 [2021-11-21 00:27:01,874 INFO L226 Difference]: Without dead ends: 25862 [2021-11-21 00:27:01,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:27:01,964 INFO L933 BasicCegarLoop]: 4754 mSDtfsCounter, 4 mSDsluCounter, 16569 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19006 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:27:01,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 19006 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3105 Invalid, 6 Unknown, 0 Unchecked, 33.5s Time] [2021-11-21 00:27:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25862 states. [2021-11-21 00:27:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25862 to 25862. [2021-11-21 00:27:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25862 states, 15845 states have (on average 1.3121489428841906) internal successors, (20791), 16283 states have internal predecessors, (20791), 8123 states have call successors, (8123), 1828 states have call predecessors, (8123), 1892 states have return successors, (8744), 8062 states have call predecessors, (8744), 8123 states have call successors, (8744) [2021-11-21 00:27:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25862 states to 25862 states and 37658 transitions. [2021-11-21 00:27:03,358 INFO L78 Accepts]: Start accepts. Automaton has 25862 states and 37658 transitions. Word has length 475 [2021-11-21 00:27:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:27:03,360 INFO L470 AbstractCegarLoop]: Abstraction has 25862 states and 37658 transitions. [2021-11-21 00:27:03,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-21 00:27:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 25862 states and 37658 transitions. [2021-11-21 00:27:03,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-21 00:27:03,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:27:03,375 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:27:03,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 00:27:03,375 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:27:03,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:27:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1891481158, now seen corresponding path program 1 times [2021-11-21 00:27:03,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:27:03,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841568043] [2021-11-21 00:27:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:27:03,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:27:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:27:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2236 trivial. 0 not checked. [2021-11-21 00:27:04,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:27:04,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841568043] [2021-11-21 00:27:04,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841568043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:27:04,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:27:04,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:27:04,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741473483] [2021-11-21 00:27:04,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:27:04,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:27:04,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:27:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:27:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:27:04,550 INFO L87 Difference]: Start difference. First operand 25862 states and 37658 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-21 00:27:07,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:11,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:27:14,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:17,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:20,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:27:22,051 INFO L93 Difference]: Finished difference Result 53296 states and 77544 transitions. [2021-11-21 00:27:22,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:27:22,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 479 [2021-11-21 00:27:22,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:27:22,311 INFO L225 Difference]: With dead ends: 53296 [2021-11-21 00:27:22,311 INFO L226 Difference]: Without dead ends: 27471 [2021-11-21 00:27:22,383 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:27:22,383 INFO L933 BasicCegarLoop]: 5218 mSDtfsCounter, 5302 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5308 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:27:22,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5308 Valid, 7129 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1137 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2021-11-21 00:27:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27471 states. [2021-11-21 00:27:23,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27471 to 27466. [2021-11-21 00:27:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27466 states, 16827 states have (on average 1.310988292624948) internal successors, (22060), 17294 states have internal predecessors, (22060), 8601 states have call successors, (8601), 1966 states have call predecessors, (8601), 2037 states have return successors, (9273), 8538 states have call predecessors, (9273), 8601 states have call successors, (9273) [2021-11-21 00:27:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27466 states to 27466 states and 39934 transitions. [2021-11-21 00:27:23,688 INFO L78 Accepts]: Start accepts. Automaton has 27466 states and 39934 transitions. Word has length 479 [2021-11-21 00:27:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:27:23,689 INFO L470 AbstractCegarLoop]: Abstraction has 27466 states and 39934 transitions. [2021-11-21 00:27:23,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-21 00:27:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 27466 states and 39934 transitions. [2021-11-21 00:27:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-21 00:27:23,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:27:23,713 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:27:23,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 00:27:23,714 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:27:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:27:23,715 INFO L85 PathProgramCache]: Analyzing trace with hash 974340889, now seen corresponding path program 1 times [2021-11-21 00:27:23,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:27:23,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611676383] [2021-11-21 00:27:23,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:27:23,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:27:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:27:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1978 trivial. 0 not checked. [2021-11-21 00:27:24,716 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:27:24,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611676383] [2021-11-21 00:27:24,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611676383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:27:24,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:27:24,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 00:27:24,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211949418] [2021-11-21 00:27:24,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:27:24,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:27:24,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:27:24,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:27:24,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:27:24,718 INFO L87 Difference]: Start difference. First operand 27466 states and 39934 transitions. Second operand has 8 states, 7 states have (on average 21.857142857142858) internal successors, (153), 6 states have internal predecessors, (153), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (64), 5 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-21 00:27:30,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:37,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []