./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7 --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 6162e3697ecc88478a9c00bc18778c9599dfc320129b47fc6800efff4bcaa814 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:41:16,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:41:16,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:41:16,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:41:16,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:41:16,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:41:16,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:41:16,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:41:16,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:41:16,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:41:16,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:41:16,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:41:16,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:41:16,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:41:16,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:41:16,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:41:16,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:41:16,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:41:16,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:41:16,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:41:16,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:41:16,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:41:16,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:41:16,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:41:16,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:41:16,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:41:16,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:41:16,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:41:16,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:41:16,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:41:16,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:41:16,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:41:16,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:41:16,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:41:16,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:41:16,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:41:16,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:41:16,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:41:16,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:41:16,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:41:16,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:41:16,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:41:16,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:41:16,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:41:16,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:41:16,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:41:16,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:41:16,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:41:16,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:41:16,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:41:16,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:41:16,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:41:16,517 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:41:16,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:41:16,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:41:16,518 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:41:16,518 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:41:16,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:41:16,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:41:16,519 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:41:16,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:41:16,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:41:16,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:41:16,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:41:16,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:41:16,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:41:16,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:41:16,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:41:16,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:41:16,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:41:16,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:41:16,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:41:16,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:41:16,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:41:16,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:41:16,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:41:16,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:41:16,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:41:16,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:41:16,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:41:16,527 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_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6162e3697ecc88478a9c00bc18778c9599dfc320129b47fc6800efff4bcaa814 [2021-11-25 19:41:16,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:41:16,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:41:16,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:41:16,815 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:41:16,816 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:41:16,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 19:41:16,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/data/9cf4e73b8/878202ecabf44a7895d7a8a3b66dccdc/FLAG10f29d7b6 [2021-11-25 19:41:18,030 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:41:18,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 19:41:18,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/data/9cf4e73b8/878202ecabf44a7895d7a8a3b66dccdc/FLAG10f29d7b6 [2021-11-25 19:41:18,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/data/9cf4e73b8/878202ecabf44a7895d7a8a3b66dccdc [2021-11-25 19:41:18,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:41:18,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:41:18,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:41:18,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:41:18,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:41:18,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:41:18" (1/1) ... [2021-11-25 19:41:18,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1b04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:18, skipping insertion in model container [2021-11-25 19:41:18,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:41:18" (1/1) ... [2021-11-25 19:41:18,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:41:18,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:41:24,082 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_a3ef8098-7abc-476a-aa8a-f440f03a601b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[551922,551935] [2021-11-25 19:41:24,085 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_a3ef8098-7abc-476a-aa8a-f440f03a601b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552067,552080] [2021-11-25 19:41:24,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:41:24,203 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:41:24,897 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_a3ef8098-7abc-476a-aa8a-f440f03a601b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[551922,551935] [2021-11-25 19:41:24,897 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_a3ef8098-7abc-476a-aa8a-f440f03a601b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552067,552080] [2021-11-25 19:41:24,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:41:25,298 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:41:25,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25 WrapperNode [2021-11-25 19:41:25,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:41:25,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:41:25,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:41:25,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:41:25,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:25,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,012 INFO L137 Inliner]: procedures = 696, calls = 5980, calls flagged for inlining = 358, calls inlined = 317, statements flattened = 11104 [2021-11-25 19:41:26,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:41:26,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:41:26,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:41:26,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:41:26,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:41:26,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:41:26,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:41:26,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:41:26,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (1/1) ... [2021-11-25 19:41:26,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:41:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:41:26,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:41:26,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3ef8098-7abc-476a-aa8a-f440f03a601b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:41:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 19:41:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 19:41:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2021-11-25 19:41:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2021-11-25 19:41:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:41:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:41:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 19:41:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 19:41:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2021-11-25 19:41:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2021-11-25 19:41:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:41:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:41:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:41:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:41:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2021-11-25 19:41:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2021-11-25 19:41:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2021-11-25 19:41:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2021-11-25 19:41:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-25 19:41:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-25 19:41:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2021-11-25 19:41:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2021-11-25 19:41:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2021-11-25 19:41:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2021-11-25 19:41:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2021-11-25 19:41:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2021-11-25 19:41:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 19:41:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 19:41:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:41:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:41:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:41:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:41:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2021-11-25 19:41:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2021-11-25 19:41:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2021-11-25 19:41:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2021-11-25 19:41:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2021-11-25 19:41:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2021-11-25 19:41:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2021-11-25 19:41:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2021-11-25 19:41:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 19:41:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 19:41:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-25 19:41:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-25 19:41:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 19:41:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 19:41:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:41:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:41:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-25 19:41:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-25 19:41:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2021-11-25 19:41:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2021-11-25 19:41:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:41:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:41:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:41:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:41:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2021-11-25 19:41:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2021-11-25 19:41:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:41:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:41:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 19:41:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 19:41:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:41:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:41:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:41:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:41:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:41:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:41:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 19:41:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 19:41:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:41:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2021-11-25 19:41:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2021-11-25 19:41:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 19:41:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 19:41:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2021-11-25 19:41:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2021-11-25 19:41:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:41:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:41:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2021-11-25 19:41:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2021-11-25 19:41:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 19:41:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 19:41:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:41:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 19:41:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 19:41:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:41:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:41:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 19:41:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 19:41:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 19:41:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 19:41:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2021-11-25 19:41:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2021-11-25 19:41:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2021-11-25 19:41:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2021-11-25 19:41:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:41:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2021-11-25 19:41:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2021-11-25 19:41:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:41:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:41:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:41:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:41:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:41:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 19:41:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 19:41:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:41:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:41:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2021-11-25 19:41:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2021-11-25 19:41:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:41:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:41:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 19:41:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 19:41:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:41:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:41:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:41:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:41:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:41:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:41:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 19:41:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 19:41:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2021-11-25 19:41:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2021-11-25 19:41:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2021-11-25 19:41:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2021-11-25 19:41:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 19:41:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 19:41:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 19:41:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 19:41:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:41:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:41:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-25 19:41:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-25 19:41:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:41:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:41:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:41:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:41:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:41:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 19:41:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 19:41:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 19:41:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 19:41:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 19:41:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 19:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 19:41:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 19:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 19:41:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 19:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 19:41:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 19:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:41:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:41:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:41:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:41:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 19:41:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 19:41:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:41:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:41:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:41:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:41:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 19:41:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 19:41:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:41:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:41:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 19:41:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 19:41:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 19:41:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 19:41:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2021-11-25 19:41:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2021-11-25 19:41:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:41:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:41:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2021-11-25 19:41:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2021-11-25 19:41:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:41:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:41:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2021-11-25 19:41:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2021-11-25 19:41:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:41:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:41:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:41:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:41:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2021-11-25 19:41:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2021-11-25 19:41:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2021-11-25 19:41:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2021-11-25 19:41:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 19:41:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 19:41:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2021-11-25 19:41:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2021-11-25 19:41:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-25 19:41:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-25 19:41:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2021-11-25 19:41:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2021-11-25 19:41:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:41:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:41:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:41:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:41:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 19:41:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 19:41:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2021-11-25 19:41:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2021-11-25 19:41:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 19:41:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 19:41:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:41:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:41:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2021-11-25 19:41:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2021-11-25 19:41:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2021-11-25 19:41:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2021-11-25 19:41:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2021-11-25 19:41:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2021-11-25 19:41:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 19:41:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 19:41:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-25 19:41:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-25 19:41:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2021-11-25 19:41:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2021-11-25 19:41:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:41:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:41:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_120 [2021-11-25 19:41:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_120 [2021-11-25 19:41:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:41:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:41:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 19:41:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 19:41:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-25 19:41:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-25 19:41:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2021-11-25 19:41:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2021-11-25 19:41:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2021-11-25 19:41:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2021-11-25 19:41:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 19:41:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 19:41:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-25 19:41:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-25 19:41:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_14_2 [2021-11-25 19:41:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_14_2 [2021-11-25 19:41:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2021-11-25 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2021-11-25 19:41:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:41:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-25 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-25 19:41:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 19:41:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:41:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:41:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2021-11-25 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2021-11-25 19:41:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-25 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-25 19:41:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_105 [2021-11-25 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_105 [2021-11-25 19:41:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2021-11-25 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2021-11-25 19:41:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:41:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 19:41:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:41:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 19:41:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2021-11-25 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2021-11-25 19:41:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 19:41:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 19:41:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2021-11-25 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2021-11-25 19:41:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:41:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2021-11-25 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2021-11-25 19:41:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2021-11-25 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2021-11-25 19:41:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-25 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-25 19:41:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:41:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:41:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-25 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-25 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2021-11-25 19:41:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2021-11-25 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 19:41:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2021-11-25 19:41:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2021-11-25 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-25 19:41:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-25 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:41:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:41:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2021-11-25 19:41:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2021-11-25 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:41:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:41:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2021-11-25 19:41:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2021-11-25 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2021-11-25 19:41:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2021-11-25 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2021-11-25 19:41:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2021-11-25 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2021-11-25 19:41:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2021-11-25 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2021-11-25 19:41:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2021-11-25 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:41:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2021-11-25 19:41:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2021-11-25 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2021-11-25 19:41:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2021-11-25 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:41:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 19:41:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2021-11-25 19:41:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2021-11-25 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2021-11-25 19:41:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2021-11-25 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2021-11-25 19:41:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2021-11-25 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 19:41:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 19:41:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2021-11-25 19:41:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2021-11-25 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:41:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2021-11-25 19:41:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2021-11-25 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2021-11-25 19:41:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2021-11-25 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-25 19:41:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-25 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2021-11-25 19:41:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2021-11-25 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_122 [2021-11-25 19:41:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_122 [2021-11-25 19:41:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2021-11-25 19:41:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2021-11-25 19:41:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:41:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2021-11-25 19:41:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2021-11-25 19:41:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:41:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:41:28,070 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:41:28,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:41:28,395 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:41:46,170 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:41:46,522 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:41:48,646 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:41:48,646 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 19:41:48,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:41:48 BoogieIcfgContainer [2021-11-25 19:41:48,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:41:48,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:41:48,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:41:48,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:41:48,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:41:18" (1/3) ... [2021-11-25 19:41:48,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71041abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:41:48, skipping insertion in model container [2021-11-25 19:41:48,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:25" (2/3) ... [2021-11-25 19:41:48,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71041abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:41:48, skipping insertion in model container [2021-11-25 19:41:48,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:41:48" (3/3) ... [2021-11-25 19:41:48,674 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 19:41:48,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:41:48,680 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 19:41:48,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:41:48,772 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 [2021-11-25 19:41:48,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:41:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 2557 states, 1507 states have (on average 1.2893165228931653) internal successors, (1943), 1549 states have internal predecessors, (1943), 878 states have call successors, (878), 172 states have call predecessors, (878), 171 states have return successors, (868), 852 states have call predecessors, (868), 868 states have call successors, (868) [2021-11-25 19:41:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-25 19:41:49,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:41:49,015 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:41:49,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:41:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:41:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1558435371, now seen corresponding path program 1 times [2021-11-25 19:41:49,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:41:49,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93313967] [2021-11-25 19:41:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:41:49,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:41:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:41:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 19:41:50,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:41:50,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93313967] [2021-11-25 19:41:50,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93313967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:41:50,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:41:50,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:41:50,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195308229] [2021-11-25 19:41:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:41:50,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:41:50,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:41:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:41:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:41:50,257 INFO L87 Difference]: Start difference. First operand has 2557 states, 1507 states have (on average 1.2893165228931653) internal successors, (1943), 1549 states have internal predecessors, (1943), 878 states have call successors, (878), 172 states have call predecessors, (878), 171 states have return successors, (868), 852 states have call predecessors, (868), 868 states have call successors, (868) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 19:41:55,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:41:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:41:58,055 INFO L93 Difference]: Finished difference Result 7167 states and 10536 transitions. [2021-11-25 19:41:58,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:41:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 248 [2021-11-25 19:41:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:41:58,122 INFO L225 Difference]: With dead ends: 7167 [2021-11-25 19:41:58,123 INFO L226 Difference]: Without dead ends: 4582 [2021-11-25 19:41:58,150 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 [2021-11-25 19:41:58,153 INFO L933 BasicCegarLoop]: 3827 mSDtfsCounter, 3000 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 6894 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:41:58,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3000 Valid, 6894 Invalid, 1180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1160 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:41:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-11-25 19:41:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 4577. [2021-11-25 19:41:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 2729 states have (on average 1.2773909857090509) internal successors, (3486), 2804 states have internal predecessors, (3486), 1518 states have call successors, (1518), 328 states have call predecessors, (1518), 328 states have return successors, (1518), 1487 states have call predecessors, (1518), 1518 states have call successors, (1518) [2021-11-25 19:41:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 6522 transitions. [2021-11-25 19:41:58,673 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 6522 transitions. Word has length 248 [2021-11-25 19:41:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:41:58,678 INFO L470 AbstractCegarLoop]: Abstraction has 4577 states and 6522 transitions. [2021-11-25 19:41:58,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 19:41:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 6522 transitions. [2021-11-25 19:41:58,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-25 19:41:58,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:41:58,694 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:41:58,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:41:58,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:41:58,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:41:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2132461281, now seen corresponding path program 1 times [2021-11-25 19:41:58,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:41:58,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001722767] [2021-11-25 19:41:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:41:58,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:41:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:41:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 19:41:59,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:41:59,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001722767] [2021-11-25 19:41:59,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001722767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:41:59,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:41:59,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:41:59,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198509002] [2021-11-25 19:41:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:41:59,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:41:59,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:41:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:41:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:41:59,313 INFO L87 Difference]: Start difference. First operand 4577 states and 6522 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 19:42:03,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:07,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:11,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:11,381 INFO L93 Difference]: Finished difference Result 13228 states and 18803 transitions. [2021-11-25 19:42:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:42:11,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 249 [2021-11-25 19:42:11,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:11,470 INFO L225 Difference]: With dead ends: 13228 [2021-11-25 19:42:11,470 INFO L226 Difference]: Without dead ends: 8694 [2021-11-25 19:42:11,505 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 [2021-11-25 19:42:11,506 INFO L933 BasicCegarLoop]: 4366 mSDtfsCounter, 3063 mSDsluCounter, 3502 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 7349 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:11,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3063 Valid, 7349 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1291 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2021-11-25 19:42:11,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2021-11-25 19:42:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 8685. [2021-11-25 19:42:12,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8685 states, 5158 states have (on average 1.267545560294688) internal successors, (6538), 5308 states have internal predecessors, (6538), 2872 states have call successors, (2872), 653 states have call predecessors, (2872), 653 states have return successors, (2872), 2806 states have call predecessors, (2872), 2872 states have call successors, (2872) [2021-11-25 19:42:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8685 states to 8685 states and 12282 transitions. [2021-11-25 19:42:12,394 INFO L78 Accepts]: Start accepts. Automaton has 8685 states and 12282 transitions. Word has length 249 [2021-11-25 19:42:12,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:42:12,409 INFO L470 AbstractCegarLoop]: Abstraction has 8685 states and 12282 transitions. [2021-11-25 19:42:12,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 19:42:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 8685 states and 12282 transitions. [2021-11-25 19:42:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-25 19:42:12,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:42:12,426 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:42:12,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:42:12,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:42:12,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:42:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1893710151, now seen corresponding path program 1 times [2021-11-25 19:42:12,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:42:12,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464016122] [2021-11-25 19:42:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:42:12,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:42:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:42:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2021-11-25 19:42:13,147 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:42:13,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464016122] [2021-11-25 19:42:13,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464016122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:42:13,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:42:13,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:42:13,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609118817] [2021-11-25 19:42:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:42:13,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:42:13,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:42:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:42:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:42:13,151 INFO L87 Difference]: Start difference. First operand 8685 states and 12282 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:42:19,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:21,633 INFO L93 Difference]: Finished difference Result 25318 states and 35778 transitions. [2021-11-25 19:42:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:42:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 273 [2021-11-25 19:42:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:21,785 INFO L225 Difference]: With dead ends: 25318 [2021-11-25 19:42:21,785 INFO L226 Difference]: Without dead ends: 16676 [2021-11-25 19:42:21,834 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 [2021-11-25 19:42:21,840 INFO L933 BasicCegarLoop]: 4487 mSDtfsCounter, 3221 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 7504 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:21,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 7504 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1278 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-25 19:42:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16676 states. [2021-11-25 19:42:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16676 to 16663. [2021-11-25 19:42:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16663 states, 9918 states have (on average 1.2648719499899173) internal successors, (12545), 10205 states have internal predecessors, (12545), 5482 states have call successors, (5482), 1261 states have call predecessors, (5482), 1261 states have return successors, (5482), 5357 states have call predecessors, (5482), 5482 states have call successors, (5482) [2021-11-25 19:42:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16663 states to 16663 states and 23509 transitions. [2021-11-25 19:42:23,000 INFO L78 Accepts]: Start accepts. Automaton has 16663 states and 23509 transitions. Word has length 273 [2021-11-25 19:42:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:42:23,009 INFO L470 AbstractCegarLoop]: Abstraction has 16663 states and 23509 transitions. [2021-11-25 19:42:23,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-25 19:42:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 16663 states and 23509 transitions. [2021-11-25 19:42:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-25 19:42:23,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:42:23,043 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:42:23,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:42:23,043 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:42:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:42:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash -826210380, now seen corresponding path program 1 times [2021-11-25 19:42:23,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:42:23,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773916289] [2021-11-25 19:42:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:42:23,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:42:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:42:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 19:42:23,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:42:23,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773916289] [2021-11-25 19:42:23,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773916289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:42:23,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:42:23,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:42:23,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197007888] [2021-11-25 19:42:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:42:23,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:42:23,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:42:23,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:42:23,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:42:23,683 INFO L87 Difference]: Start difference. First operand 16663 states and 23509 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:42:27,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:32,333 INFO L93 Difference]: Finished difference Result 45539 states and 64163 transitions. [2021-11-25 19:42:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:42:32,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 268 [2021-11-25 19:42:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:32,535 INFO L225 Difference]: With dead ends: 45539 [2021-11-25 19:42:32,536 INFO L226 Difference]: Without dead ends: 28919 [2021-11-25 19:42:32,627 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 [2021-11-25 19:42:32,628 INFO L933 BasicCegarLoop]: 3747 mSDtfsCounter, 2698 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 6729 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:32,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2698 Valid, 6729 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1157 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-25 19:42:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28919 states. [2021-11-25 19:42:34,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28919 to 28906. [2021-11-25 19:42:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28906 states, 17150 states have (on average 1.2522448979591836) internal successors, (21476), 17646 states have internal predecessors, (21476), 9473 states have call successors, (9473), 2302 states have call predecessors, (9473), 2281 states have return successors, (9718), 9214 states have call predecessors, (9718), 9473 states have call successors, (9718) [2021-11-25 19:42:34,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28906 states to 28906 states and 40667 transitions. [2021-11-25 19:42:34,557 INFO L78 Accepts]: Start accepts. Automaton has 28906 states and 40667 transitions. Word has length 268 [2021-11-25 19:42:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:42:34,561 INFO L470 AbstractCegarLoop]: Abstraction has 28906 states and 40667 transitions. [2021-11-25 19:42:34,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:42:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 28906 states and 40667 transitions. [2021-11-25 19:42:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-25 19:42:34,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:42:34,581 INFO L514 BasicCegarLoop]: trace histogram [24, 21, 21, 21, 21, 21, 21, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:42:34,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:42:34,581 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:42:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:42:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1107280186, now seen corresponding path program 1 times [2021-11-25 19:42:34,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:42:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680661838] [2021-11-25 19:42:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:42:34,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:42:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:42:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2021-11-25 19:42:35,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:42:35,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680661838] [2021-11-25 19:42:35,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680661838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:42:35,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:42:35,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:42:35,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759597277] [2021-11-25 19:42:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:42:35,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:42:35,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:42:35,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:42:35,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:42:35,099 INFO L87 Difference]: Start difference. First operand 28906 states and 40667 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:42:39,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:43,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:43,404 INFO L93 Difference]: Finished difference Result 58440 states and 82080 transitions. [2021-11-25 19:42:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:42:43,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 286 [2021-11-25 19:42:43,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:43,582 INFO L225 Difference]: With dead ends: 58440 [2021-11-25 19:42:43,583 INFO L226 Difference]: Without dead ends: 29577 [2021-11-25 19:42:43,702 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 [2021-11-25 19:42:43,705 INFO L933 BasicCegarLoop]: 3183 mSDtfsCounter, 730 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 6191 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:43,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 6191 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1118 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:42:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29577 states. [2021-11-25 19:42:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29577 to 29577. [2021-11-25 19:42:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29577 states, 17568 states have (on average 1.25) internal successors, (21960), 18069 states have internal predecessors, (21960), 9633 states have call successors, (9633), 2395 states have call predecessors, (9633), 2374 states have return successors, (9878), 9373 states have call predecessors, (9878), 9633 states have call successors, (9878) [2021-11-25 19:42:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29577 states to 29577 states and 41471 transitions. [2021-11-25 19:42:45,920 INFO L78 Accepts]: Start accepts. Automaton has 29577 states and 41471 transitions. Word has length 286 [2021-11-25 19:42:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:42:45,922 INFO L470 AbstractCegarLoop]: Abstraction has 29577 states and 41471 transitions. [2021-11-25 19:42:45,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:42:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 29577 states and 41471 transitions. [2021-11-25 19:42:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-25 19:42:45,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:42:45,937 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:42:45,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:42:45,937 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:42:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:42:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 625549469, now seen corresponding path program 1 times [2021-11-25 19:42:45,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:42:45,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820833937] [2021-11-25 19:42:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:42:45,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:42:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:42:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1881 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1878 trivial. 0 not checked. [2021-11-25 19:42:46,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:42:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820833937] [2021-11-25 19:42:46,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820833937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:42:46,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:42:46,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:42:46,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571594869] [2021-11-25 19:42:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:42:46,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:42:46,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:42:46,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:42:46,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:42:46,668 INFO L87 Difference]: Start difference. First operand 29577 states and 41471 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 19:42:51,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:56,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:42:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:42:57,364 INFO L93 Difference]: Finished difference Result 71321 states and 100030 transitions. [2021-11-25 19:42:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:42:57,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 297 [2021-11-25 19:42:57,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:42:57,629 INFO L225 Difference]: With dead ends: 71321 [2021-11-25 19:42:57,629 INFO L226 Difference]: Without dead ends: 42330 [2021-11-25 19:42:57,753 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 [2021-11-25 19:42:57,754 INFO L933 BasicCegarLoop]: 4591 mSDtfsCounter, 2888 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 7582 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:42:57,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2888 Valid, 7582 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1387 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-25 19:42:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42330 states. [2021-11-25 19:42:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42330 to 42318. [2021-11-25 19:42:59,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42318 states, 25167 states have (on average 1.2484602852942346) internal successors, (31420), 25882 states have internal predecessors, (31420), 13719 states have call successors, (13719), 3460 states have call predecessors, (13719), 3430 states have return successors, (14062), 13348 states have call predecessors, (14062), 13719 states have call successors, (14062) [2021-11-25 19:43:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42318 states to 42318 states and 59201 transitions. [2021-11-25 19:43:00,432 INFO L78 Accepts]: Start accepts. Automaton has 42318 states and 59201 transitions. Word has length 297 [2021-11-25 19:43:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:43:00,435 INFO L470 AbstractCegarLoop]: Abstraction has 42318 states and 59201 transitions. [2021-11-25 19:43:00,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 19:43:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 42318 states and 59201 transitions. [2021-11-25 19:43:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-25 19:43:00,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:43:00,466 INFO L514 BasicCegarLoop]: trace histogram [27, 21, 21, 21, 21, 21, 21, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:43:00,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:43:00,467 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:43:00,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:43:00,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1639109504, now seen corresponding path program 1 times [2021-11-25 19:43:00,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:43:00,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96880281] [2021-11-25 19:43:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:43:00,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:43:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:43:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2001 trivial. 0 not checked. [2021-11-25 19:43:00,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:43:00,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96880281] [2021-11-25 19:43:00,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96880281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:43:00,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:43:00,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:43:00,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828569416] [2021-11-25 19:43:00,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:43:00,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:43:00,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:43:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:43:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:43:00,942 INFO L87 Difference]: Start difference. First operand 42318 states and 59201 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-25 19:43:06,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:43:09,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:43:14,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:43:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:43:15,675 INFO L93 Difference]: Finished difference Result 103313 states and 144626 transitions. [2021-11-25 19:43:15,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:43:15,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 330 [2021-11-25 19:43:15,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:43:16,104 INFO L225 Difference]: With dead ends: 103313 [2021-11-25 19:43:16,104 INFO L226 Difference]: Without dead ends: 61581 [2021-11-25 19:43:16,284 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 [2021-11-25 19:43:16,285 INFO L933 BasicCegarLoop]: 5757 mSDtfsCounter, 3191 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 8772 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:43:16,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3191 Valid, 8772 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1605 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2021-11-25 19:43:16,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61581 states. [2021-11-25 19:43:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61581 to 61552. [2021-11-25 19:43:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61552 states, 36647 states have (on average 1.2482331432313696) internal successors, (45744), 37686 states have internal predecessors, (45744), 19913 states have call successors, (19913), 5032 states have call predecessors, (19913), 4990 states have return successors, (20405), 19376 states have call predecessors, (20405), 19913 states have call successors, (20405) [2021-11-25 19:43:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61552 states to 61552 states and 86062 transitions. [2021-11-25 19:43:19,730 INFO L78 Accepts]: Start accepts. Automaton has 61552 states and 86062 transitions. Word has length 330 [2021-11-25 19:43:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:43:19,732 INFO L470 AbstractCegarLoop]: Abstraction has 61552 states and 86062 transitions. [2021-11-25 19:43:19,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-25 19:43:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 61552 states and 86062 transitions. [2021-11-25 19:43:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-11-25 19:43:19,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:43:19,763 INFO L514 BasicCegarLoop]: trace histogram [27, 21, 21, 21, 21, 21, 21, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:43:19,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:43:19,764 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:43:19,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:43:19,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1521681755, now seen corresponding path program 1 times [2021-11-25 19:43:19,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:43:19,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250671226] [2021-11-25 19:43:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:43:19,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:43:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:43:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked. [2021-11-25 19:43:21,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:43:21,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250671226] [2021-11-25 19:43:21,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250671226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:43:21,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:43:21,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:43:21,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706221783] [2021-11-25 19:43:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:43:21,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:43:21,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:43:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:43:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:43:21,074 INFO L87 Difference]: Start difference. First operand 61552 states and 86062 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 19:43:34,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:43:47,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:43:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:43:47,694 INFO L93 Difference]: Finished difference Result 86616 states and 121667 transitions. [2021-11-25 19:43:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:43:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 359 [2021-11-25 19:43:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:43:48,300 INFO L225 Difference]: With dead ends: 86616 [2021-11-25 19:43:48,300 INFO L226 Difference]: Without dead ends: 86614 [2021-11-25 19:43:48,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:43:48,342 INFO L933 BasicCegarLoop]: 3725 mSDtfsCounter, 2488 mSDsluCounter, 15059 mSDsCounter, 0 mSdLazyCounter, 4198 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 16566 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:43:48,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2501 Valid, 16566 Invalid, 4206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4198 Invalid, 2 Unknown, 0 Unchecked, 23.2s Time] [2021-11-25 19:43:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86614 states. [2021-11-25 19:43:52,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86614 to 86573. [2021-11-25 19:43:52,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86573 states, 51494 states have (on average 1.2427661475123315) internal successors, (63995), 53029 states have internal predecessors, (63995), 27897 states have call successors, (27897), 7253 states have call predecessors, (27897), 7180 states have return successors, (29720), 27033 states have call predecessors, (29720), 27897 states have call successors, (29720) [2021-11-25 19:43:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86573 states to 86573 states and 121612 transitions. [2021-11-25 19:43:53,451 INFO L78 Accepts]: Start accepts. Automaton has 86573 states and 121612 transitions. Word has length 359 [2021-11-25 19:43:53,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:43:53,452 INFO L470 AbstractCegarLoop]: Abstraction has 86573 states and 121612 transitions. [2021-11-25 19:43:53,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 19:43:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 86573 states and 121612 transitions. [2021-11-25 19:43:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-25 19:43:53,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:43:53,532 INFO L514 BasicCegarLoop]: trace histogram [29, 21, 21, 21, 21, 21, 21, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:43:53,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:43:53,533 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:43:53,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:43:53,533 INFO L85 PathProgramCache]: Analyzing trace with hash 450890394, now seen corresponding path program 1 times [2021-11-25 19:43:53,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:43:53,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119083902] [2021-11-25 19:43:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:43:53,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:43:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:43:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2157 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2136 trivial. 0 not checked. [2021-11-25 19:43:53,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:43:53,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119083902] [2021-11-25 19:43:53,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119083902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:43:53,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:43:53,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:43:53,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984826514] [2021-11-25 19:43:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:43:53,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:43:53,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:43:53,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:43:53,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:43:53,953 INFO L87 Difference]: Start difference. First operand 86573 states and 121612 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-25 19:44:02,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:44:10,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:44:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:44:11,743 INFO L93 Difference]: Finished difference Result 209350 states and 294281 transitions. [2021-11-25 19:44:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:44:11,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 366 [2021-11-25 19:44:11,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:44:12,422 INFO L225 Difference]: With dead ends: 209350 [2021-11-25 19:44:12,422 INFO L226 Difference]: Without dead ends: 123877 [2021-11-25 19:44:13,075 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 [2021-11-25 19:44:13,075 INFO L933 BasicCegarLoop]: 5681 mSDtfsCounter, 3112 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3112 SdHoareTripleChecker+Valid, 8662 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:44:13,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3112 Valid, 8662 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1624 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2021-11-25 19:44:13,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123877 states. [2021-11-25 19:44:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123877 to 123854. [2021-11-25 19:44:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123854 states, 73699 states have (on average 1.2394605082836945) internal successors, (91347), 75899 states have internal predecessors, (91347), 39799 states have call successors, (39799), 10457 states have call predecessors, (39799), 10354 states have return successors, (42211), 38569 states have call predecessors, (42211), 39799 states have call successors, (42211) [2021-11-25 19:44:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123854 states to 123854 states and 173357 transitions. [2021-11-25 19:44:20,223 INFO L78 Accepts]: Start accepts. Automaton has 123854 states and 173357 transitions. Word has length 366 [2021-11-25 19:44:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:44:20,224 INFO L470 AbstractCegarLoop]: Abstraction has 123854 states and 173357 transitions. [2021-11-25 19:44:20,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-25 19:44:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 123854 states and 173357 transitions. [2021-11-25 19:44:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-25 19:44:20,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:20,278 INFO L514 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:44:20,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:44:20,278 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:44:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash -873561239, now seen corresponding path program 1 times [2021-11-25 19:44:20,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:20,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310150581] [2021-11-25 19:44:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:20,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:44:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2021-11-25 19:44:20,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:44:20,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310150581] [2021-11-25 19:44:20,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310150581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:44:20,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:44:20,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:44:20,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022005432] [2021-11-25 19:44:20,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:44:20,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:44:20,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:44:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:44:20,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:44:20,972 INFO L87 Difference]: Start difference. First operand 123854 states and 173357 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42)