./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/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 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:46:05,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:46:05,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:46:05,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:46:05,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:46:05,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:46:05,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:46:05,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:46:05,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:46:05,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:46:05,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:46:05,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:46:05,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:46:05,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:46:05,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:46:05,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:46:05,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:46:05,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:46:05,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:46:05,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:46:05,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:46:05,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:46:05,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:46:05,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:46:05,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:46:05,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:46:05,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:46:05,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:46:05,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:46:05,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:46:05,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:46:05,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:46:05,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:46:05,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:46:05,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:46:05,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:46:05,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:46:05,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:46:05,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:46:05,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:46:05,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:46:05,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:46:05,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:46:05,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:46:05,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:46:05,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:46:05,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:46:05,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:46:05,466 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:46:05,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:46:05,466 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:46:05,466 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:46:05,468 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:46:05,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:46:05,468 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:46:05,468 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:46:05,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:46:05,469 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:46:05,469 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:46:05,469 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:46:05,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:46:05,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:46:05,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:46:05,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:46:05,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:46:05,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:46:05,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:46:05,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:46:05,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:46:05,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:46:05,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:46:05,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:05,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:46:05,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:46:05,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:46:05,476 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:46:05,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:46:05,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:46:05,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:46:05,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:46:05,477 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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2021-11-20 22:46:05,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:46:05,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:46:05,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:46:05,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:46:05,822 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:46:05,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-20 22:46:05,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/data/36dacd0d0/63a796eb338a4136b7e5e7481b39bc82/FLAGca6088746 [2021-11-20 22:46:06,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:46:06,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-20 22:46:07,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/data/36dacd0d0/63a796eb338a4136b7e5e7481b39bc82/FLAGca6088746 [2021-11-20 22:46:07,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/data/36dacd0d0/63a796eb338a4136b7e5e7481b39bc82 [2021-11-20 22:46:07,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:46:07,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:46:07,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:07,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:46:07,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:46:07,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:07" (1/1) ... [2021-11-20 22:46:07,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9fed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:07, skipping insertion in model container [2021-11-20 22:46:07,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:07" (1/1) ... [2021-11-20 22:46:07,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:46:07,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:10,795 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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-20 22:46:10,798 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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-20 22:46:10,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:10,907 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:11,309 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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-20 22:46:11,309 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_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-20 22:46:11,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:11,580 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:11,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11 WrapperNode [2021-11-20 22:46:11,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:11,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:11,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:11,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:11,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:11,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:11,987 INFO L137 Inliner]: procedures = 442, calls = 2346, calls flagged for inlining = 211, calls inlined = 196, statements flattened = 5343 [2021-11-20 22:46:11,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:11,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:11,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:11,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:11,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:11,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:12,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:12,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:12,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:12,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (1/1) ... [2021-11-20 22:46:12,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:12,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:12,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-11-20 22:46:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-11-20 22:46:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 22:46:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 22:46:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:46:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:46:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 22:46:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 22:46:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-11-20 22:46:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-11-20 22:46:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-20 22:46:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-20 22:46:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:46:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:46:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-11-20 22:46:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-11-20 22:46:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:46:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:46:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-20 22:46:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-20 22:46:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-11-20 22:46:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-11-20 22:46:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-11-20 22:46:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-11-20 22:46:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:46:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:46:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:46:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:46:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 22:46:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 22:46:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:46:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:46:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 22:46:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 22:46:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 22:46:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 22:46:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-11-20 22:46:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-11-20 22:46:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2021-11-20 22:46:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2021-11-20 22:46:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:46:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:46:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-11-20 22:46:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-11-20 22:46:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 22:46:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 22:46:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-20 22:46:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-20 22:46:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2021-11-20 22:46:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2021-11-20 22:46:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-11-20 22:46:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-11-20 22:46:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:46:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:46:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:46:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:46:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 22:46:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 22:46:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 22:46:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 22:46:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:46:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:46:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:46:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:46:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-11-20 22:46:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-11-20 22:46:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-11-20 22:46:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-11-20 22:46:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 22:46:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 22:46:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:46:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:46:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-11-20 22:46:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-11-20 22:46:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-11-20 22:46:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-11-20 22:46:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-11-20 22:46:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-11-20 22:46:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-20 22:46:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-20 22:46:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-20 22:46:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-20 22:46:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 22:46:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 22:46:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-11-20 22:46:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-11-20 22:46:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:46:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:46:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:46:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:46:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:46:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-11-20 22:46:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-11-20 22:46:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:46:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:46:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 22:46:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 22:46:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 22:46:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 22:46:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 22:46:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 22:46:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_11_2 [2021-11-20 22:46:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_11_2 [2021-11-20 22:46:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 22:46:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 22:46:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-20 22:46:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-20 22:46:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-11-20 22:46:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-11-20 22:46:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-11-20 22:46:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-11-20 22:46:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_detect [2021-11-20 22:46:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_detect [2021-11-20 22:46:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-20 22:46:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-20 22:46:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:46:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:46:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_exit [2021-11-20 22:46:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_exit [2021-11-20 22:46:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 22:46:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 22:46:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-20 22:46:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-20 22:46:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-11-20 22:46:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-11-20 22:46:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-11-20 22:46:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-11-20 22:46:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 22:46:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 22:46:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 22:46:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 22:46:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 22:46:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 22:46:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-20 22:46:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-20 22:46:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-11-20 22:46:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-11-20 22:46:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 22:46:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 22:46:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 22:46:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 22:46:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_eisa_cleanup [2021-11-20 22:46:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_eisa_cleanup [2021-11-20 22:46:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-11-20 22:46:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-11-20 22:46:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-11-20 22:46:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-11-20 22:46:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-20 22:46:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-20 22:46:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:46:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:46:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 22:46:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 22:46:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:46:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:46:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-20 22:46:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-20 22:46:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-11-20 22:46:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-11-20 22:46:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-11-20 22:46:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-11-20 22:46:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 22:46:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 22:46:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 22:46:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 22:46:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-11-20 22:46:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-20 22:46:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-11-20 22:46:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-11-20 22:46:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-11-20 22:46:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:46:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:46:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-11-20 22:46:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 22:46:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-11-20 22:46:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-11-20 22:46:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-11-20 22:46:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_97 [2021-11-20 22:46:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_97 [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:46:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2021-11-20 22:46:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 22:46:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-20 22:46:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-20 22:46:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-20 22:46:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-20 22:46:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-20 22:46:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 22:46:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 22:46:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 22:46:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 22:46:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-20 22:46:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-20 22:46:13,338 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:13,343 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:14,141 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~nondet330#1; [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume !(64 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6975: tlan_eisa_probe_~irq~0#1 := 10; [2021-11-20 22:46:17,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume !(128 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6912-1: call tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset;havoc tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset; [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: tlan_eisa_probe_~irq~0#1 := 11; [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume !(16 == ~debug~0); [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2021-11-20 22:46:17,090 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret333#1;havoc tlan_eisa_probe_#t~ret333#1; [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret333#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6931: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume -2147483648 <= tlan_eisa_probe_#t~ret338#1 && tlan_eisa_probe_#t~ret338#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret334#1;havoc tlan_eisa_probe_#t~ret334#1; [2021-11-20 22:46:17,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: SUMMARY for call tlan_eisa_probe_#t~ret334#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6941: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret335#1;havoc tlan_eisa_probe_#t~ret335#1; [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret335#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7013-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2021-11-20 22:46:17,092 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet340#1; [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume !(16 == ~debug~0); [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956-2: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet336#1; [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume !(16 == ~debug~0); [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-20 22:46:17,093 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6963: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume !(16 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~nondet328#1; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: tlan_eisa_probe_~irq~0#1 := 5; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-20 22:46:17,094 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume !(32 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-11-20 22:46:17,095 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: tlan_eisa_probe_~irq~0#1 := 9; [2021-11-20 22:46:17,095 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume 0 != ~bitwiseAnd(~debug~0, 16);havoc tlan_eisa_probe_#t~nondet331#1; [2021-11-20 22:46:17,095 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-20 22:46:17,213 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:46:18,742 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:46:18,742 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 22:46:18,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:18 BoogieIcfgContainer [2021-11-20 22:46:18,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:46:18,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:46:18,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:46:18,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:46:18,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:07" (1/3) ... [2021-11-20 22:46:18,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf69b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:18, skipping insertion in model container [2021-11-20 22:46:18,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:11" (2/3) ... [2021-11-20 22:46:18,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf69b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:18, skipping insertion in model container [2021-11-20 22:46:18,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:18" (3/3) ... [2021-11-20 22:46:18,755 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-20 22:46:18,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:46:18,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:46:18,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:46:18,843 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 22:46:18,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:46:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 1620 states, 897 states have (on average 1.2552954292084726) internal successors, (1126), 939 states have internal predecessors, (1126), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-20 22:46:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-20 22:46:18,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:18,953 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2021-11-20 22:46:18,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:18,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1962961884, now seen corresponding path program 1 times [2021-11-20 22:46:18,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:18,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388594947] [2021-11-20 22:46:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:18,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 22:46:19,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388594947] [2021-11-20 22:46:19,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388594947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:19,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:19,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:19,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181370659] [2021-11-20 22:46:19,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:19,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:19,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:19,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:19,687 INFO L87 Difference]: Start difference. First operand has 1620 states, 897 states have (on average 1.2552954292084726) internal successors, (1126), 939 states have internal predecessors, (1126), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 22:46:22,363 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 22:46:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:24,020 INFO L93 Difference]: Finished difference Result 4715 states and 7118 transitions. [2021-11-20 22:46:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2021-11-20 22:46:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:24,101 INFO L225 Difference]: With dead ends: 4715 [2021-11-20 22:46:24,102 INFO L226 Difference]: Without dead ends: 3055 [2021-11-20 22:46:24,128 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 22:46:24,139 INFO L933 BasicCegarLoop]: 3045 mSDtfsCounter, 2393 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:24,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2393 Valid, 5071 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-20 22:46:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-11-20 22:46:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3032. [2021-11-20 22:46:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 1684 states have (on average 1.240498812351544) internal successors, (2089), 1769 states have internal predecessors, (2089), 1148 states have call successors, (1148), 202 states have call predecessors, (1148), 199 states have return successors, (1370), 1112 states have call predecessors, (1370), 1148 states have call successors, (1370) [2021-11-20 22:46:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 4607 transitions. [2021-11-20 22:46:24,652 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 4607 transitions. Word has length 111 [2021-11-20 22:46:24,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:24,654 INFO L470 AbstractCegarLoop]: Abstraction has 3032 states and 4607 transitions. [2021-11-20 22:46:24,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 22:46:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 4607 transitions. [2021-11-20 22:46:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 22:46:24,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:24,663 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:24,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:46:24,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1515623881, now seen corresponding path program 1 times [2021-11-20 22:46:24,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:24,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364877861] [2021-11-20 22:46:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:24,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:24,948 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-20 22:46:24,948 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:24,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364877861] [2021-11-20 22:46:24,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364877861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:24,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:24,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:24,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779434148] [2021-11-20 22:46:24,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:24,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:24,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:24,958 INFO L87 Difference]: Start difference. First operand 3032 states and 4607 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-20 22:46:28,040 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 22:46:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:29,442 INFO L93 Difference]: Finished difference Result 7588 states and 11389 transitions. [2021-11-20 22:46:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:29,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2021-11-20 22:46:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:29,502 INFO L225 Difference]: With dead ends: 7588 [2021-11-20 22:46:29,503 INFO L226 Difference]: Without dead ends: 4569 [2021-11-20 22:46:29,538 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 22:46:29,540 INFO L933 BasicCegarLoop]: 2632 mSDtfsCounter, 2088 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:29,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2088 Valid, 3769 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 665 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-20 22:46:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2021-11-20 22:46:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 4541. [2021-11-20 22:46:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4541 states, 2549 states have (on average 1.2349941153393487) internal successors, (3148), 2685 states have internal predecessors, (3148), 1661 states have call successors, (1661), 361 states have call predecessors, (1661), 330 states have return successors, (1934), 1564 states have call predecessors, (1934), 1661 states have call successors, (1934) [2021-11-20 22:46:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 6743 transitions. [2021-11-20 22:46:29,896 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 6743 transitions. Word has length 110 [2021-11-20 22:46:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:29,897 INFO L470 AbstractCegarLoop]: Abstraction has 4541 states and 6743 transitions. [2021-11-20 22:46:29,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-20 22:46:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 6743 transitions. [2021-11-20 22:46:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 22:46:29,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:29,908 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2021-11-20 22:46:29,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:46:29,909 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:29,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1825530565, now seen corresponding path program 1 times [2021-11-20 22:46:29,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:29,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844877688] [2021-11-20 22:46:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:29,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 22:46:30,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:30,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844877688] [2021-11-20 22:46:30,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844877688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:30,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:30,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:30,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067505104] [2021-11-20 22:46:30,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:30,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:30,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:30,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:30,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:30,165 INFO L87 Difference]: Start difference. First operand 4541 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 22:46:32,578 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 22:46:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:34,775 INFO L93 Difference]: Finished difference Result 12999 states and 19369 transitions. [2021-11-20 22:46:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 122 [2021-11-20 22:46:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:34,904 INFO L225 Difference]: With dead ends: 12999 [2021-11-20 22:46:34,904 INFO L226 Difference]: Without dead ends: 8471 [2021-11-20 22:46:34,964 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 22:46:34,969 INFO L933 BasicCegarLoop]: 2957 mSDtfsCounter, 2475 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 4940 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:34,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2475 Valid, 4940 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 618 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-20 22:46:34,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2021-11-20 22:46:35,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 8453. [2021-11-20 22:46:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8453 states, 4775 states have (on average 1.2351832460732983) internal successors, (5898), 5036 states have internal predecessors, (5898), 3036 states have call successors, (3036), 709 states have call predecessors, (3036), 641 states have return successors, (3681), 2839 states have call predecessors, (3681), 3036 states have call successors, (3681) [2021-11-20 22:46:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8453 states to 8453 states and 12615 transitions. [2021-11-20 22:46:35,868 INFO L78 Accepts]: Start accepts. Automaton has 8453 states and 12615 transitions. Word has length 122 [2021-11-20 22:46:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:35,871 INFO L470 AbstractCegarLoop]: Abstraction has 8453 states and 12615 transitions. [2021-11-20 22:46:35,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 22:46:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8453 states and 12615 transitions. [2021-11-20 22:46:35,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-20 22:46:35,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:35,879 INFO L514 BasicCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2021-11-20 22:46:35,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:46:35,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:35,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1466504155, now seen corresponding path program 1 times [2021-11-20 22:46:35,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:35,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139581131] [2021-11-20 22:46:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:35,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-20 22:46:36,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:36,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139581131] [2021-11-20 22:46:36,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139581131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:36,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:36,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:36,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751730232] [2021-11-20 22:46:36,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:36,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:36,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:36,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:36,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:36,148 INFO L87 Difference]: Start difference. First operand 8453 states and 12615 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:46:38,940 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 22:46:41,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:41,047 INFO L93 Difference]: Finished difference Result 19000 states and 28253 transitions. [2021-11-20 22:46:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:41,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2021-11-20 22:46:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:41,318 INFO L225 Difference]: With dead ends: 19000 [2021-11-20 22:46:41,319 INFO L226 Difference]: Without dead ends: 10560 [2021-11-20 22:46:41,376 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 22:46:41,377 INFO L933 BasicCegarLoop]: 2844 mSDtfsCounter, 978 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 4851 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:41,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 4851 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 773 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-20 22:46:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-11-20 22:46:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 10550. [2021-11-20 22:46:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10550 states, 5997 states have (on average 1.2354510588627647) internal successors, (7409), 6328 states have internal predecessors, (7409), 3731 states have call successors, (3731), 931 states have call predecessors, (3731), 821 states have return successors, (4448), 3445 states have call predecessors, (4448), 3731 states have call successors, (4448) [2021-11-20 22:46:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10550 states to 10550 states and 15588 transitions. [2021-11-20 22:46:42,069 INFO L78 Accepts]: Start accepts. Automaton has 10550 states and 15588 transitions. Word has length 153 [2021-11-20 22:46:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:42,070 INFO L470 AbstractCegarLoop]: Abstraction has 10550 states and 15588 transitions. [2021-11-20 22:46:42,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:46:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 10550 states and 15588 transitions. [2021-11-20 22:46:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-20 22:46:42,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:42,081 INFO L514 BasicCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 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] [2021-11-20 22:46:42,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:46:42,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:42,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1073141490, now seen corresponding path program 1 times [2021-11-20 22:46:42,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:42,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74925472] [2021-11-20 22:46:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:42,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-20 22:46:42,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:42,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74925472] [2021-11-20 22:46:42,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74925472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:42,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:42,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:42,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027862996] [2021-11-20 22:46:42,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:42,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:42,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:42,448 INFO L87 Difference]: Start difference. First operand 10550 states and 15588 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 22:46:45,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:46:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:46,758 INFO L93 Difference]: Finished difference Result 21249 states and 32397 transitions. [2021-11-20 22:46:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:46,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 217 [2021-11-20 22:46:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:46,857 INFO L225 Difference]: With dead ends: 21249 [2021-11-20 22:46:46,858 INFO L226 Difference]: Without dead ends: 10712 [2021-11-20 22:46:46,959 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 22:46:46,962 INFO L933 BasicCegarLoop]: 2025 mSDtfsCounter, 12 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:46,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4041 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 565 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-20 22:46:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10712 states. [2021-11-20 22:46:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10712 to 10568. [2021-11-20 22:46:47,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10568 states, 6015 states have (on average 1.2347464671654198) internal successors, (7427), 6346 states have internal predecessors, (7427), 3731 states have call successors, (3731), 931 states have call predecessors, (3731), 821 states have return successors, (4448), 3445 states have call predecessors, (4448), 3731 states have call successors, (4448) [2021-11-20 22:46:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10568 states to 10568 states and 15606 transitions. [2021-11-20 22:46:47,903 INFO L78 Accepts]: Start accepts. Automaton has 10568 states and 15606 transitions. Word has length 217 [2021-11-20 22:46:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:47,905 INFO L470 AbstractCegarLoop]: Abstraction has 10568 states and 15606 transitions. [2021-11-20 22:46:47,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 22:46:47,905 INFO L276 IsEmpty]: Start isEmpty. Operand 10568 states and 15606 transitions. [2021-11-20 22:46:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-20 22:46:47,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:47,917 INFO L514 BasicCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:47,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:46:47,917 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:47,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1848730960, now seen corresponding path program 1 times [2021-11-20 22:46:47,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:47,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768781002] [2021-11-20 22:46:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:47,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-20 22:46:48,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:48,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768781002] [2021-11-20 22:46:48,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768781002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:48,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:48,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:46:48,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333569226] [2021-11-20 22:46:48,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:48,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:46:48,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:48,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:46:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:46:48,212 INFO L87 Difference]: Start difference. First operand 10568 states and 15606 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 22:46:50,807 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 22:46:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:52,636 INFO L93 Difference]: Finished difference Result 21243 states and 31505 transitions. [2021-11-20 22:46:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:46:52,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 218 [2021-11-20 22:46:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:52,733 INFO L225 Difference]: With dead ends: 21243 [2021-11-20 22:46:52,734 INFO L226 Difference]: Without dead ends: 10688 [2021-11-20 22:46:52,808 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 22:46:52,809 INFO L933 BasicCegarLoop]: 2023 mSDtfsCounter, 6 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:52,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 4038 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 566 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-20 22:46:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2021-11-20 22:46:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 10628. [2021-11-20 22:46:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10628 states, 6065 states have (on average 1.2344600164880462) internal successors, (7487), 6396 states have internal predecessors, (7487), 3741 states have call successors, (3741), 931 states have call predecessors, (3741), 821 states have return successors, (4458), 3455 states have call predecessors, (4458), 3741 states have call successors, (4458) [2021-11-20 22:46:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10628 states to 10628 states and 15686 transitions. [2021-11-20 22:46:53,558 INFO L78 Accepts]: Start accepts. Automaton has 10628 states and 15686 transitions. Word has length 218 [2021-11-20 22:46:53,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:53,559 INFO L470 AbstractCegarLoop]: Abstraction has 10628 states and 15686 transitions. [2021-11-20 22:46:53,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 22:46:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 10628 states and 15686 transitions. [2021-11-20 22:46:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-20 22:46:53,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:53,577 INFO L514 BasicCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:53,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 22:46:53,578 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:53,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:53,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1187356301, now seen corresponding path program 1 times [2021-11-20 22:46:53,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:53,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739963132] [2021-11-20 22:46:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:53,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-20 22:46:53,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:53,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739963132] [2021-11-20 22:46:53,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739963132] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:46:53,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868027665] [2021-11-20 22:46:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:53,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:53,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:53,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c9d343-2fe0-4cbb-95bd-de0ad09cbb01/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:46:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:54,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:46:54,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-20 22:46:55,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-20 22:46:55,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868027665] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:46:55,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [277488217] [2021-11-20 22:46:55,832 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2021-11-20 22:46:55,832 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:46:55,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:46:55,843 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:46:55,843 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:47:13,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:13,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:13,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 22:47:36,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41