./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-marvell-sky2.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_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/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_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/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-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/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_cba76b2c-e5bb-484c-b742-2e37425c70dd/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 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:50:39,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:50:39,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:50:39,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:50:39,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:50:39,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:50:39,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:50:39,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:50:39,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:50:39,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:50:39,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:50:39,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:50:39,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:50:39,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:50:39,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:50:39,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:50:39,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:50:39,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:50:39,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:50:39,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:50:39,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:50:39,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:50:39,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:50:39,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:50:39,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:50:39,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:50:39,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:50:39,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:50:39,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:50:39,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:50:39,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:50:39,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:50:39,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:50:39,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:50:39,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:50:39,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:50:39,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:50:39,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:50:39,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:50:39,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:50:39,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:50:39,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:50:39,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:50:39,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:50:39,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:50:39,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:50:39,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:50:39,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:50:39,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:50:39,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:50:39,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:50:39,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:50:39,593 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:50:39,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:50:39,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:50:39,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:50:39,595 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:50:39,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:50:39,595 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:50:39,595 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:50:39,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:50:39,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:50:39,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:50:39,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:50:39,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:50:39,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:50:39,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:50:39,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:50:39,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:50:39,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:50:39,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:50:39,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:50:39,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:50:39,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:50:39,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:50:39,600 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:50:39,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:50:39,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:50:39,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:50:39,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:50:39,602 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_cba76b2c-e5bb-484c-b742-2e37425c70dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 [2021-11-20 23:50:39,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:50:39,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:50:39,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:50:39,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:50:39,911 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:50:39,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-20 23:50:39,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/data/ca965fd9e/b96ac3cc8633455dbdbcb1f18b6cad11/FLAG4cebc52cc [2021-11-20 23:50:41,011 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:50:41,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-20 23:50:41,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/data/ca965fd9e/b96ac3cc8633455dbdbcb1f18b6cad11/FLAG4cebc52cc [2021-11-20 23:50:41,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/data/ca965fd9e/b96ac3cc8633455dbdbcb1f18b6cad11 [2021-11-20 23:50:41,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:50:41,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:50:41,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:50:41,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:50:41,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:50:41,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:50:41" (1/1) ... [2021-11-20 23:50:41,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf3e206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:41, skipping insertion in model container [2021-11-20 23:50:41,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:50:41" (1/1) ... [2021-11-20 23:50:41,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:50:41,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:50:49,051 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_cba76b2c-e5bb-484c-b742-2e37425c70dd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-20 23:50:49,056 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_cba76b2c-e5bb-484c-b742-2e37425c70dd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-20 23:50:49,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:50:49,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:50:50,296 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_cba76b2c-e5bb-484c-b742-2e37425c70dd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-20 23:50:50,297 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_cba76b2c-e5bb-484c-b742-2e37425c70dd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-20 23:50:50,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:50:50,999 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:50:51,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51 WrapperNode [2021-11-20 23:50:51,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:50:51,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:50:51,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:50:51,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:50:51,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:51,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:51,646 INFO L137 Inliner]: procedures = 821, calls = 5772, calls flagged for inlining = 428, calls inlined = 368, statements flattened = 11456 [2021-11-20 23:50:51,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:50:51,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:50:51,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:50:51,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:50:51,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:51,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:51,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:51,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:52,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:52,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:52,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:52,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:50:52,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:50:52,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:50:52,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:50:52,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (1/1) ... [2021-11-20 23:50:52,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:50:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:50:52,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:50:52,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba76b2c-e5bb-484c-b742-2e37425c70dd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:50:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:50:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:50:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-20 23:50:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-20 23:50:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-20 23:50:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-20 23:50:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-20 23:50:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-20 23:50:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-20 23:50:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-20 23:50:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-20 23:50:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-20 23:50:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 23:50:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 23:50:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-20 23:50:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-20 23:50:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:50:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:50:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-20 23:50:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-20 23:50:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 23:50:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 23:50:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-20 23:50:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-20 23:50:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-20 23:50:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-20 23:50:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 23:50:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 23:50:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 23:50:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 23:50:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-20 23:50:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-20 23:50:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 23:50:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 23:50:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 23:50:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 23:50:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-20 23:50:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-20 23:50:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-20 23:50:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-20 23:50:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:50:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:50:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-20 23:50:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-20 23:50:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:50:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:50:52,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:50:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:50:52,621 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-20 23:50:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-20 23:50:52,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:50:52,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-20 23:50:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-20 23:50:52,622 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-20 23:50:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-20 23:50:52,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-20 23:50:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-20 23:50:52,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:50:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:50:52,624 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-20 23:50:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-20 23:50:52,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 23:50:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 23:50:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 23:50:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 23:50:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 23:50:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 23:50:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-20 23:50:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-20 23:50:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 23:50:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 23:50:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:50:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 23:50:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 23:50:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 23:50:52,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 23:50:52,628 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-20 23:50:52,629 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-20 23:50:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 23:50:52,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 23:50:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-20 23:50:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-20 23:50:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-20 23:50:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-20 23:50:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-20 23:50:52,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-20 23:50:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-20 23:50:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-20 23:50:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-20 23:50:52,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-20 23:50:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:50:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-20 23:50:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-20 23:50:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-20 23:50:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-20 23:50:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-20 23:50:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-20 23:50:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:50:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:50:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:50:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:50:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:50:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:50:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-20 23:50:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-20 23:50:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 23:50:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 23:50:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-20 23:50:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-20 23:50:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-20 23:50:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-20 23:50:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-20 23:50:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-20 23:50:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:50:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:50:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-20 23:50:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-20 23:50:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:50:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:50:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-20 23:50:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-20 23:50:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:50:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:50:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-20 23:50:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-20 23:50:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:50:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:50:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-20 23:50:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-20 23:50:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 23:50:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 23:50:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-20 23:50:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-20 23:50:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 23:50:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 23:50:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:50:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:50:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:50:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-20 23:50:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-20 23:50:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-20 23:50:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-20 23:50:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:50:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:50:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-20 23:50:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-20 23:50:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 23:50:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-20 23:50:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-20 23:50:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 23:50:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 23:50:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-20 23:50:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-20 23:50:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-20 23:50:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-20 23:50:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 23:50:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 23:50:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-20 23:50:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-20 23:50:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 23:50:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 23:50:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-20 23:50:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-20 23:50:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:50:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:50:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 23:50:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 23:50:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 23:50:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 23:50:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-20 23:50:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-20 23:50:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-20 23:50:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-20 23:50:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-20 23:50:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-20 23:50:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-20 23:50:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-20 23:50:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-20 23:50:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-20 23:50:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-20 23:50:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-20 23:50:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:50:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:50:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:50:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:50:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-20 23:50:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-20 23:50:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 23:50:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 23:50:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-20 23:50:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-20 23:50:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 23:50:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 23:50:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-20 23:50:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-20 23:50:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:50:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:50:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2021-11-20 23:50:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2021-11-20 23:50:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-20 23:50:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-20 23:50:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-20 23:50:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-20 23:50:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-20 23:50:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-20 23:50:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 23:50:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 23:50:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-20 23:50:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-20 23:50:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-20 23:50:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-20 23:50:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:50:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:50:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:50:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-20 23:50:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-20 23:50:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:50:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:50:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-20 23:50:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-20 23:50:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-20 23:50:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-20 23:50:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-20 23:50:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-20 23:50:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 23:50:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 23:50:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-20 23:50:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-20 23:50:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-20 23:50:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-20 23:50:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-20 23:50:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-20 23:50:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-20 23:50:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-20 23:50:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 23:50:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 23:50:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:50:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:50:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-20 23:50:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-20 23:50:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-20 23:50:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-20 23:50:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:50:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:50:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 23:50:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 23:50:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-20 23:50:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-20 23:50:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-20 23:50:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-20 23:50:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-20 23:50:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-20 23:50:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-20 23:50:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-20 23:50:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-20 23:50:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-20 23:50:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:50:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:50:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-20 23:50:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-20 23:50:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 23:50:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 23:50:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-20 23:50:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-20 23:50:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:50:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:50:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:50:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:50:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-20 23:50:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-20 23:50:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:50:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-20 23:50:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-20 23:50:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-20 23:50:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-20 23:50:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-20 23:50:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-20 23:50:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-20 23:50:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-20 23:50:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:50:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:50:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-20 23:50:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-20 23:50:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:50:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 23:50:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 23:50:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:50:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 23:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 23:50:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:50:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 23:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 23:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 23:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 23:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-20 23:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-20 23:50:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:50:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:50:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-20 23:50:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-20 23:50:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-20 23:50:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-20 23:50:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:50:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:50:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-20 23:50:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-20 23:50:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:50:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:50:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 23:50:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 23:50:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 23:50:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 23:50:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-20 23:50:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-20 23:50:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-20 23:50:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-20 23:50:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 23:50:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 23:50:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-20 23:50:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-20 23:50:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-20 23:50:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-20 23:50:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 23:50:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 23:50:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-20 23:50:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-20 23:50:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:50:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:50:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:50:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-20 23:50:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-20 23:50:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-20 23:50:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-20 23:50:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 23:50:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 23:50:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-20 23:50:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-20 23:50:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-20 23:50:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-20 23:50:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-20 23:50:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-20 23:50:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-20 23:50:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-20 23:50:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-20 23:50:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-20 23:50:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 23:50:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 23:50:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-20 23:50:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-20 23:50:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-20 23:50:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-20 23:50:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-20 23:50:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-20 23:50:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-20 23:50:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-20 23:50:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-20 23:50:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-20 23:50:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-20 23:50:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-20 23:50:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 23:50:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 23:50:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-20 23:50:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-20 23:50:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 23:50:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 23:50:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 23:50:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 23:50:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:50:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-20 23:50:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-20 23:50:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:50:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:50:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-20 23:50:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-20 23:50:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 23:50:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 23:50:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 23:50:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 23:50:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 23:50:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 23:50:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:50:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:50:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-20 23:50:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-20 23:50:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-20 23:50:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-20 23:50:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 23:50:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 23:50:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-20 23:50:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-20 23:50:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-20 23:50:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-20 23:50:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-20 23:50:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-20 23:50:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:50:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:50:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-20 23:50:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-20 23:50:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-20 23:50:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-20 23:50:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-20 23:50:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-20 23:50:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-20 23:50:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-20 23:50:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:50:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:50:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-20 23:50:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-20 23:50:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 23:50:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 23:50:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-20 23:50:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-20 23:50:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 23:50:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 23:50:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-20 23:50:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-20 23:50:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2021-11-20 23:50:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2021-11-20 23:50:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-20 23:50:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-20 23:50:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-20 23:50:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-20 23:50:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-20 23:50:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-20 23:50:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:50:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:50:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-20 23:50:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-20 23:50:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-20 23:50:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-20 23:50:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-20 23:50:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-20 23:50:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-20 23:50:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-20 23:50:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:50:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:50:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-20 23:50:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-20 23:50:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:50:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-20 23:50:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-20 23:50:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 23:50:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 23:50:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 23:50:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 23:50:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-20 23:50:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-20 23:50:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 23:50:54,258 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:50:54,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:50:54,376 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:51:10,734 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 23:51:10,914 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:51:13,980 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:51:13,980 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-20 23:51:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:13 BoogieIcfgContainer [2021-11-20 23:51:13,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:51:13,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:51:13,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:51:13,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:51:13,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:50:41" (1/3) ... [2021-11-20 23:51:13,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273a6ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:13, skipping insertion in model container [2021-11-20 23:51:13,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:51" (2/3) ... [2021-11-20 23:51:13,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273a6ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:13, skipping insertion in model container [2021-11-20 23:51:13,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:13" (3/3) ... [2021-11-20 23:51:13,999 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-20 23:51:14,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:51:14,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:51:14,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:51:14,081 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 [2021-11-20 23:51:14,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:51:14,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) [2021-11-20 23:51:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-20 23:51:14,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:14,219 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:14,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash -637935520, now seen corresponding path program 1 times [2021-11-20 23:51:14,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:51:14,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789391909] [2021-11-20 23:51:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:14,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:51:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-20 23:51:15,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:51:15,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789391909] [2021-11-20 23:51:15,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789391909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:15,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:15,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:51:15,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547893648] [2021-11-20 23:51:15,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:15,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:15,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:15,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:15,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:15,571 INFO L87 Difference]: Start difference. First operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-20 23:51:21,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:24,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:24,525 INFO L93 Difference]: Finished difference Result 9726 states and 14436 transitions. [2021-11-20 23:51:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:24,528 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 378 [2021-11-20 23:51:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:24,627 INFO L225 Difference]: With dead ends: 9726 [2021-11-20 23:51:24,627 INFO L226 Difference]: Without dead ends: 6318 [2021-11-20 23:51:24,665 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 [2021-11-20 23:51:24,669 INFO L933 BasicCegarLoop]: 5488 mSDtfsCounter, 4425 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:24,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4427 Valid, 9841 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1257 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-20 23:51:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2021-11-20 23:51:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 6315. [2021-11-20 23:51:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 3623 states have (on average 1.304995859784709) internal successors, (4728), 3770 states have internal predecessors, (4728), 2277 states have call successors, (2277), 415 states have call predecessors, (2277), 414 states have return successors, (2277), 2227 states have call predecessors, (2277), 2277 states have call successors, (2277) [2021-11-20 23:51:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 9282 transitions. [2021-11-20 23:51:25,354 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 9282 transitions. Word has length 378 [2021-11-20 23:51:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:25,361 INFO L470 AbstractCegarLoop]: Abstraction has 6315 states and 9282 transitions. [2021-11-20 23:51:25,362 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-20 23:51:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 9282 transitions. [2021-11-20 23:51:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-20 23:51:25,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:25,387 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:25,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:51:25,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1469055558, now seen corresponding path program 1 times [2021-11-20 23:51:25,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:51:25,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841517062] [2021-11-20 23:51:25,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:25,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:51:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-20 23:51:26,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:51:26,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841517062] [2021-11-20 23:51:26,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841517062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:26,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:26,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:51:26,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313592331] [2021-11-20 23:51:26,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:26,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:26,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:26,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:26,060 INFO L87 Difference]: Start difference. First operand 6315 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-20 23:51:32,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:33,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:36,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:36,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:36,955 INFO L93 Difference]: Finished difference Result 18402 states and 27041 transitions. [2021-11-20 23:51:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:36,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 379 [2021-11-20 23:51:36,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:37,077 INFO L225 Difference]: With dead ends: 18402 [2021-11-20 23:51:37,077 INFO L226 Difference]: Without dead ends: 12152 [2021-11-20 23:51:37,128 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 [2021-11-20 23:51:37,130 INFO L933 BasicCegarLoop]: 6283 mSDtfsCounter, 4504 mSDsluCounter, 4837 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 10550 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:37,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4508 Valid, 10550 Invalid, 1425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1394 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2021-11-20 23:51:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12152 states. [2021-11-20 23:51:38,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12152 to 12144. [2021-11-20 23:51:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12144 states, 6967 states have (on average 1.299985646619779) internal successors, (9057), 7252 states have internal predecessors, (9057), 4366 states have call successors, (4366), 813 states have call predecessors, (4366), 810 states have return successors, (4370), 4270 states have call predecessors, (4370), 4366 states have call successors, (4370) [2021-11-20 23:51:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12144 states to 12144 states and 17793 transitions. [2021-11-20 23:51:38,384 INFO L78 Accepts]: Start accepts. Automaton has 12144 states and 17793 transitions. Word has length 379 [2021-11-20 23:51:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:38,390 INFO L470 AbstractCegarLoop]: Abstraction has 12144 states and 17793 transitions. [2021-11-20 23:51:38,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-20 23:51:38,393 INFO L276 IsEmpty]: Start isEmpty. Operand 12144 states and 17793 transitions. [2021-11-20 23:51:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-20 23:51:38,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:38,425 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 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] [2021-11-20 23:51:38,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:51:38,425 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 280475068, now seen corresponding path program 1 times [2021-11-20 23:51:38,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:51:38,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710181897] [2021-11-20 23:51:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:38,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:51:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2021-11-20 23:51:39,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:51:39,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710181897] [2021-11-20 23:51:39,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710181897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:39,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:39,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:51:39,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557615100] [2021-11-20 23:51:39,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:39,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:39,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:39,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:39,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:39,031 INFO L87 Difference]: Start difference. First operand 12144 states and 17793 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-20 23:51:45,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:47,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:47,459 INFO L93 Difference]: Finished difference Result 35774 states and 52371 transitions. [2021-11-20 23:51:47,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:47,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 403 [2021-11-20 23:51:47,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:47,672 INFO L225 Difference]: With dead ends: 35774 [2021-11-20 23:51:47,673 INFO L226 Difference]: Without dead ends: 23695 [2021-11-20 23:51:47,743 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 [2021-11-20 23:51:47,746 INFO L933 BasicCegarLoop]: 6541 mSDtfsCounter, 4692 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 10839 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:47,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4694 Valid, 10839 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1403 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-20 23:51:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23695 states. [2021-11-20 23:51:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23695 to 23685. [2021-11-20 23:51:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23685 states, 13633 states have (on average 1.2989804151690751) internal successors, (17709), 14191 states have internal predecessors, (17709), 8455 states have call successors, (8455), 1603 states have call predecessors, (8455), 1596 states have return successors, (8462), 8263 states have call predecessors, (8462), 8455 states have call successors, (8462) [2021-11-20 23:51:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23685 states to 23685 states and 34626 transitions. [2021-11-20 23:51:49,445 INFO L78 Accepts]: Start accepts. Automaton has 23685 states and 34626 transitions. Word has length 403 [2021-11-20 23:51:49,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:49,446 INFO L470 AbstractCegarLoop]: Abstraction has 23685 states and 34626 transitions. [2021-11-20 23:51:49,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-20 23:51:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand 23685 states and 34626 transitions. [2021-11-20 23:51:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-20 23:51:49,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:49,492 INFO L514 BasicCegarLoop]: trace histogram [34, 32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:49,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:51:49,493 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:49,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1457570332, now seen corresponding path program 1 times [2021-11-20 23:51:49,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:51:49,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815575194] [2021-11-20 23:51:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:49,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:51:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4107 trivial. 0 not checked. [2021-11-20 23:51:50,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:51:50,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815575194] [2021-11-20 23:51:50,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815575194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:50,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:50,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:51:50,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599605304] [2021-11-20 23:51:50,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:50,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:50,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:50,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:50,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:50,168 INFO L87 Difference]: Start difference. First operand 23685 states and 34626 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, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 23:51:56,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:56,410 INFO L93 Difference]: Finished difference Result 50006 states and 72933 transitions. [2021-11-20 23:51:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:56,411 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, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2021-11-20 23:51:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:56,590 INFO L225 Difference]: With dead ends: 50006 [2021-11-20 23:51:56,590 INFO L226 Difference]: Without dead ends: 26386 [2021-11-20 23:51:56,681 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 [2021-11-20 23:51:56,682 INFO L933 BasicCegarLoop]: 5667 mSDtfsCounter, 3447 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 9934 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:56,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3447 Valid, 9934 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1290 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-11-20 23:51:56,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26386 states. [2021-11-20 23:51:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26386 to 26382. [2021-11-20 23:51:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26382 states, 15207 states have (on average 1.295587558361281) internal successors, (19702), 15815 states have internal predecessors, (19702), 9343 states have call successors, (9343), 1839 states have call predecessors, (9343), 1831 states have return successors, (9350), 9133 states have call predecessors, (9350), 9343 states have call successors, (9350) [2021-11-20 23:51:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26382 states to 26382 states and 38395 transitions. [2021-11-20 23:51:58,650 INFO L78 Accepts]: Start accepts. Automaton has 26382 states and 38395 transitions. Word has length 420 [2021-11-20 23:51:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:58,653 INFO L470 AbstractCegarLoop]: Abstraction has 26382 states and 38395 transitions. [2021-11-20 23:51:58,653 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, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 23:51:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26382 states and 38395 transitions. [2021-11-20 23:51:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-20 23:51:58,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:58,693 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 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] [2021-11-20 23:51:58,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:51:58,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:58,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1598464471, now seen corresponding path program 1 times [2021-11-20 23:51:58,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:51:58,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554269692] [2021-11-20 23:51:58,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:58,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:51:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-20 23:51:59,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:51:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554269692] [2021-11-20 23:51:59,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554269692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:59,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:59,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:51:59,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863479037] [2021-11-20 23:51:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:59,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:59,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:59,327 INFO L87 Difference]: Start difference. First operand 26382 states and 38395 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 23:52:05,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:06,051 INFO L93 Difference]: Finished difference Result 67183 states and 97328 transitions. [2021-11-20 23:52:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:52:06,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 434 [2021-11-20 23:52:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:06,404 INFO L225 Difference]: With dead ends: 67183 [2021-11-20 23:52:06,404 INFO L226 Difference]: Without dead ends: 40866 [2021-11-20 23:52:06,499 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 [2021-11-20 23:52:06,500 INFO L933 BasicCegarLoop]: 5292 mSDtfsCounter, 3630 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:06,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3631 Valid, 9554 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-11-20 23:52:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40866 states. [2021-11-20 23:52:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40866 to 40854. [2021-11-20 23:52:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40854 states, 23240 states have (on average 1.2791308089500861) internal successors, (29727), 24194 states have internal predecessors, (29727), 14607 states have call successors, (14607), 3026 states have call predecessors, (14607), 3006 states have return successors, (14640), 14264 states have call predecessors, (14640), 14607 states have call successors, (14640) [2021-11-20 23:52:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40854 states to 40854 states and 58974 transitions. [2021-11-20 23:52:09,533 INFO L78 Accepts]: Start accepts. Automaton has 40854 states and 58974 transitions. Word has length 434 [2021-11-20 23:52:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:09,534 INFO L470 AbstractCegarLoop]: Abstraction has 40854 states and 58974 transitions. [2021-11-20 23:52:09,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 23:52:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 40854 states and 58974 transitions. [2021-11-20 23:52:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-20 23:52:09,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:09,556 INFO L514 BasicCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:52:09,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:52:09,557 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:09,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:09,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1966946504, now seen corresponding path program 1 times [2021-11-20 23:52:09,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:09,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306383985] [2021-11-20 23:52:09,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:09,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4521 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2021-11-20 23:52:10,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:10,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306383985] [2021-11-20 23:52:10,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306383985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:10,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:10,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:52:10,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971490867] [2021-11-20 23:52:10,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:10,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:52:10,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:52:10,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:52:10,147 INFO L87 Difference]: Start difference. First operand 40854 states and 58974 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-20 23:52:17,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:18,638 INFO L93 Difference]: Finished difference Result 99316 states and 143405 transitions. [2021-11-20 23:52:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:52:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 439 [2021-11-20 23:52:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:18,976 INFO L225 Difference]: With dead ends: 99316 [2021-11-20 23:52:18,977 INFO L226 Difference]: Without dead ends: 58867 [2021-11-20 23:52:19,130 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 [2021-11-20 23:52:19,132 INFO L933 BasicCegarLoop]: 6505 mSDtfsCounter, 4344 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 10786 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:19,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4346 Valid, 10786 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-20 23:52:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58867 states. [2021-11-20 23:52:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58867 to 58857. [2021-11-20 23:52:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58857 states, 33521 states have (on average 1.2783031532472182) internal successors, (42850), 34882 states have internal predecessors, (42850), 20982 states have call successors, (20982), 4382 states have call predecessors, (20982), 4353 states have return successors, (21024), 20484 states have call predecessors, (21024), 20982 states have call successors, (21024) [2021-11-20 23:52:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58857 states to 58857 states and 84856 transitions. [2021-11-20 23:52:22,233 INFO L78 Accepts]: Start accepts. Automaton has 58857 states and 84856 transitions. Word has length 439 [2021-11-20 23:52:22,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:22,235 INFO L470 AbstractCegarLoop]: Abstraction has 58857 states and 84856 transitions. [2021-11-20 23:52:22,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-20 23:52:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 58857 states and 84856 transitions. [2021-11-20 23:52:22,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-20 23:52:22,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:22,277 INFO L514 BasicCegarLoop]: trace histogram [38, 33, 33, 33, 33, 33, 33, 6, 6, 3, 3, 3, 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] [2021-11-20 23:52:22,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:52:22,277 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash -198035033, now seen corresponding path program 1 times [2021-11-20 23:52:22,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:22,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351766152] [2021-11-20 23:52:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:22,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4635 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4628 trivial. 0 not checked. [2021-11-20 23:52:23,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:23,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351766152] [2021-11-20 23:52:23,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351766152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:23,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:23,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:52:23,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764650199] [2021-11-20 23:52:23,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:23,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:52:23,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:52:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:52:23,524 INFO L87 Difference]: Start difference. First operand 58857 states and 84856 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-20 23:52:29,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:34,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:35,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:35,211 INFO L93 Difference]: Finished difference Result 144385 states and 208239 transitions. [2021-11-20 23:52:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:52:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 476 [2021-11-20 23:52:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:35,680 INFO L225 Difference]: With dead ends: 144385 [2021-11-20 23:52:35,680 INFO L226 Difference]: Without dead ends: 85933 [2021-11-20 23:52:36,145 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 [2021-11-20 23:52:36,146 INFO L933 BasicCegarLoop]: 8442 mSDtfsCounter, 4692 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 12738 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:36,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4694 Valid, 12738 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1818 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2021-11-20 23:52:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85933 states. [2021-11-20 23:52:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85933 to 85907. [2021-11-20 23:52:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85907 states, 49011 states have (on average 1.2786517312440064) internal successors, (62668), 51002 states have internal predecessors, (62668), 30538 states have call successors, (30538), 6400 states have call predecessors, (30538), 6357 states have return successors, (30598), 29802 states have call predecessors, (30598), 30538 states have call successors, (30598) [2021-11-20 23:52:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85907 states to 85907 states and 123804 transitions. [2021-11-20 23:52:41,077 INFO L78 Accepts]: Start accepts. Automaton has 85907 states and 123804 transitions. Word has length 476 [2021-11-20 23:52:41,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:41,078 INFO L470 AbstractCegarLoop]: Abstraction has 85907 states and 123804 transitions. [2021-11-20 23:52:41,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-20 23:52:41,079 INFO L276 IsEmpty]: Start isEmpty. Operand 85907 states and 123804 transitions. [2021-11-20 23:52:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-20 23:52:41,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:41,133 INFO L514 BasicCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 8, 8, 3, 3, 3, 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] [2021-11-20 23:52:41,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:52:41,133 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:41,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1595003230, now seen corresponding path program 1 times [2021-11-20 23:52:41,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:41,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289859703] [2021-11-20 23:52:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:41,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4746 trivial. 0 not checked. [2021-11-20 23:52:41,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:41,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289859703] [2021-11-20 23:52:41,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289859703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:41,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:41,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:52:41,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20312926] [2021-11-20 23:52:41,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:41,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:52:41,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:52:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:52:41,906 INFO L87 Difference]: Start difference. First operand 85907 states and 123804 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-20 23:52:49,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:52,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:52:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:53,597 INFO L93 Difference]: Finished difference Result 200364 states and 288789 transitions. [2021-11-20 23:52:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:52:53,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 503 [2021-11-20 23:52:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:54,180 INFO L225 Difference]: With dead ends: 200364 [2021-11-20 23:52:54,181 INFO L226 Difference]: Without dead ends: 114862 [2021-11-20 23:52:54,445 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 [2021-11-20 23:52:54,445 INFO L933 BasicCegarLoop]: 8158 mSDtfsCounter, 4720 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4720 SdHoareTripleChecker+Valid, 12157 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:54,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4720 Valid, 12157 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1725 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-20 23:52:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114862 states. [2021-11-20 23:52:59,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114862 to 114848. [2021-11-20 23:52:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114848 states, 65400 states have (on average 1.2770642201834863) internal successors, (83520), 68053 states have internal predecessors, (83520), 40888 states have call successors, (40888), 8619 states have call predecessors, (40888), 8559 states have return successors, (40962), 39893 states have call predecessors, (40962), 40888 states have call successors, (40962) [2021-11-20 23:53:00,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114848 states to 114848 states and 165370 transitions. [2021-11-20 23:53:00,399 INFO L78 Accepts]: Start accepts. Automaton has 114848 states and 165370 transitions. Word has length 503 [2021-11-20 23:53:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:53:00,401 INFO L470 AbstractCegarLoop]: Abstraction has 114848 states and 165370 transitions. [2021-11-20 23:53:00,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-20 23:53:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand 114848 states and 165370 transitions. [2021-11-20 23:53:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-20 23:53:00,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:53:00,435 INFO L514 BasicCegarLoop]: trace histogram [40, 33, 33, 33, 33, 33, 33, 6, 6, 4, 4, 4, 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] [2021-11-20 23:53:00,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:53:00,436 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:53:00,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:53:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash 909021225, now seen corresponding path program 1 times [2021-11-20 23:53:00,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:53:00,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667995772] [2021-11-20 23:53:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:53:00,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:53:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:53:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4814 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4789 trivial. 0 not checked. [2021-11-20 23:53:00,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:53:00,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667995772] [2021-11-20 23:53:00,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667995772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:53:00,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:53:00,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:53:00,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812968860] [2021-11-20 23:53:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:53:00,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:53:00,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:53:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:53:00,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:53:00,910 INFO L87 Difference]: Start difference. First operand 114848 states and 165370 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54)