./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02f0930d8b2fe3bfe796d15e5df91cc252d41b871a82a3358310d5ea0b73a544 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:19:47,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:19:47,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:19:47,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:19:47,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:19:47,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:19:47,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:19:47,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:19:47,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:19:47,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:19:47,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:19:47,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:19:47,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:19:47,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:19:47,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:19:47,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:19:47,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:19:47,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:19:47,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:19:47,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:19:47,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:19:47,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:19:47,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:19:47,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:19:47,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:19:47,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:19:47,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:19:47,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:19:47,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:19:47,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:19:47,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:19:47,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:19:47,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:19:47,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:19:47,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:19:47,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:19:47,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:19:47,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:19:47,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:19:47,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:19:47,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:19:47,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:19:47,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:19:47,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:19:47,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:19:47,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:19:47,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:19:47,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:19:47,571 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:19:47,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:19:47,572 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:19:47,572 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:19:47,573 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:19:47,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:19:47,574 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:19:47,574 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:19:47,574 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:19:47,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:19:47,575 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:19:47,575 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:19:47,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:19:47,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:19:47,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:19:47,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:19:47,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:19:47,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:19:47,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:19:47,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:19:47,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:19:47,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:19:47,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:19:47,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:19:47,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:19:47,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:19:47,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:19:47,581 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:19:47,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:19:47,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:19:47,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:19:47,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:19:47,582 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_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f0930d8b2fe3bfe796d15e5df91cc252d41b871a82a3358310d5ea0b73a544 [2021-11-20 23:19:47,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:19:47,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:19:47,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:19:47,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:19:47,994 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:19:47,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-20 23:19:48,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/data/da190c6f2/a15ddfef21804b1e9affc300df8b9f57/FLAGc44d1cf2a [2021-11-20 23:19:49,540 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:19:49,541 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-20 23:19:49,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/data/da190c6f2/a15ddfef21804b1e9affc300df8b9f57/FLAGc44d1cf2a [2021-11-20 23:19:49,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/data/da190c6f2/a15ddfef21804b1e9affc300df8b9f57 [2021-11-20 23:19:49,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:19:49,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:19:49,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:19:49,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:19:49,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:19:49,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:19:49" (1/1) ... [2021-11-20 23:19:49,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a1e50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:19:49, skipping insertion in model container [2021-11-20 23:19:49,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:19:49" (1/1) ... [2021-11-20 23:19:50,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:19:50,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:20:02,750 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_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948299,948312] [2021-11-20 23:20:02,753 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_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948444,948457] [2021-11-20 23:20:02,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:20:02,922 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:20:04,337 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_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948299,948312] [2021-11-20 23:20:04,338 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_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948444,948457] [2021-11-20 23:20:04,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:20:05,064 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:20:05,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05 WrapperNode [2021-11-20 23:20:05,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:20:05,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:20:05,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:20:05,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:20:05,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:05,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:06,676 INFO L137 Inliner]: procedures = 852, calls = 16559, calls flagged for inlining = 416, calls inlined = 353, statements flattened = 29452 [2021-11-20 23:20:06,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:20:06,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:20:06,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:20:06,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:20:06,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:06,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:06,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:06,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:07,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:07,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:08,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:08,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:20:08,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:20:08,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:20:08,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:20:08,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (1/1) ... [2021-11-20 23:20:08,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:20:08,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:20:08,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:20:08,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa7cb83-c52d-4984-ae5c-d881ce3362b5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:20:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-20 23:20:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-20 23:20:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-20 23:20:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-20 23:20:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-20 23:20:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-20 23:20:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-20 23:20:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-20 23:20:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-20 23:20:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-20 23:20:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-20 23:20:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-20 23:20:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-20 23:20:08,503 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-20 23:20:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:20:08,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:20:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-20 23:20:08,504 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-20 23:20:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-20 23:20:08,504 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-20 23:20:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 23:20:08,505 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 23:20:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:20:08,505 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:20:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-20 23:20:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-20 23:20:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 23:20:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 23:20:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-20 23:20:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-20 23:20:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-20 23:20:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-20 23:20:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-20 23:20:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-20 23:20:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 23:20:08,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 23:20:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 23:20:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 23:20:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:20:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:20:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 23:20:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 23:20:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-20 23:20:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-20 23:20:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-20 23:20:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-20 23:20:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-20 23:20:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-20 23:20:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 23:20:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 23:20:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 23:20:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 23:20:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:20:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:20:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_113 [2021-11-20 23:20:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_113 [2021-11-20 23:20:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-20 23:20:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-20 23:20:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-20 23:20:08,528 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-20 23:20:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-20 23:20:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-20 23:20:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-20 23:20:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-20 23:20:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:20:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:20:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-20 23:20:08,530 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-20 23:20:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:20:08,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:20:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-20 23:20:08,532 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-20 23:20:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:20:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_108 [2021-11-20 23:20:08,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_108 [2021-11-20 23:20:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-20 23:20:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-20 23:20:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-20 23:20:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-20 23:20:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-20 23:20:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-20 23:20:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:20:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:20:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-20 23:20:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-20 23:20:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 23:20:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 23:20:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-20 23:20:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-20 23:20:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 23:20:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 23:20:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-20 23:20:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-20 23:20:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:20:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 23:20:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 23:20:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-20 23:20:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-20 23:20:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:20:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:20:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:20:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:20:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:20:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:20:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-20 23:20:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-20 23:20:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:20:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-20 23:20:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-20 23:20:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-20 23:20:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-20 23:20:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 23:20:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 23:20:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-20 23:20:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-20 23:20:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:20:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:20:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-20 23:20:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-20 23:20:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:20:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:20:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-20 23:20:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-20 23:20:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-20 23:20:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-20 23:20:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:20:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:20:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-20 23:20:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-20 23:20:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-20 23:20:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-20 23:20:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-20 23:20:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-20 23:20:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:20:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:20:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-20 23:20:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-20 23:20:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-20 23:20:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-20 23:20:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-20 23:20:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-20 23:20:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-20 23:20:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-20 23:20:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 23:20:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 23:20:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-20 23:20:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-20 23:20:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:20:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:20:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:20:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-20 23:20:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-20 23:20:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:20:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:20:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 23:20:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 23:20:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 23:20:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-20 23:20:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-20 23:20:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-20 23:20:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-20 23:20:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 23:20:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 23:20:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:20:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:20:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-20 23:20:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-20 23:20:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-20 23:20:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-20 23:20:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-20 23:20:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-20 23:20:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-20 23:20:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-20 23:20:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-20 23:20:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-20 23:20:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 23:20:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 23:20:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 23:20:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 23:20:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:20:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:20:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:20:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_119 [2021-11-20 23:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_119 [2021-11-20 23:20:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-20 23:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-20 23:20:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:20:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-20 23:20:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-20 23:20:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-20 23:20:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-20 23:20:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 23:20:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 23:20:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-20 23:20:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-20 23:20:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-20 23:20:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-20 23:20:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-20 23:20:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-20 23:20:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 23:20:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 23:20:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-20 23:20:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-20 23:20:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 23:20:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 23:20:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 23:20:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 23:20:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-20 23:20:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-20 23:20:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:20:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-20 23:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-20 23:20:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-20 23:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-20 23:20:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-20 23:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-20 23:20:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-20 23:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-20 23:20:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 23:20:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 23:20:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-20 23:20:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-20 23:20:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-20 23:20:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-20 23:20:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-20 23:20:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-20 23:20:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-20 23:20:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-20 23:20:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:20:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:20:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:20:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-20 23:20:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-20 23:20:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:20:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:20:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-20 23:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-20 23:20:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-20 23:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-20 23:20:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-20 23:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-20 23:20:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-20 23:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-20 23:20:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-20 23:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-20 23:20:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-20 23:20:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-20 23:20:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-20 23:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-20 23:20:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 23:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 23:20:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-20 23:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-20 23:20:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 23:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 23:20:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 23:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 23:20:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-20 23:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-20 23:20:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-20 23:20:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-20 23:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-20 23:20:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-20 23:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-20 23:20:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 23:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 23:20:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:20:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-20 23:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-20 23:20:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-20 23:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-20 23:20:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:20:08,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:20:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-20 23:20:08,651 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-20 23:20:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-20 23:20:08,651 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-20 23:20:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-20 23:20:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-20 23:20:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 23:20:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 23:20:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-20 23:20:08,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-20 23:20:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-20 23:20:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-20 23:20:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 23:20:08,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 23:20:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-20 23:20:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-20 23:20:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-20 23:20:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-20 23:20:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-20 23:20:08,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-20 23:20:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-20 23:20:08,655 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-20 23:20:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-20 23:20:08,655 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-20 23:20:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:20:08,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:20:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 23:20:08,656 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 23:20:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:20:08,656 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:20:08,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-20 23:20:08,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-20 23:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-20 23:20:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-20 23:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-20 23:20:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-20 23:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-20 23:20:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-20 23:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-20 23:20:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-20 23:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-20 23:20:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-20 23:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:20:08,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-20 23:20:08,660 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-20 23:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-20 23:20:08,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-20 23:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 23:20:08,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 23:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:20:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-20 23:20:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-20 23:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:20:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-20 23:20:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-20 23:20:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-20 23:20:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-20 23:20:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 23:20:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 23:20:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 23:20:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 23:20:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-20 23:20:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-20 23:20:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:20:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:20:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-20 23:20:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-20 23:20:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-20 23:20:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-20 23:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-20 23:20:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-20 23:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-20 23:20:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-20 23:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 23:20:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 23:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 23:20:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 23:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:20:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:20:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 23:20:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 23:20:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 23:20:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 23:20:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-20 23:20:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-20 23:20:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-20 23:20:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-20 23:20:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-20 23:20:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-20 23:20:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-20 23:20:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-20 23:20:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-20 23:20:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-20 23:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 23:20:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 23:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 23:20:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 23:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 23:20:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 23:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-20 23:20:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-20 23:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 23:20:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 23:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-20 23:20:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-20 23:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-20 23:20:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-20 23:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 23:20:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 23:20:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-20 23:20:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-20 23:20:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-20 23:20:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-20 23:20:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-20 23:20:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-20 23:20:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 23:20:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 23:20:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-20 23:20:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-20 23:20:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-20 23:20:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-20 23:20:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:20:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-20 23:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-20 23:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 23:20:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 23:20:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 23:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 23:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-20 23:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-20 23:20:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 23:20:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 23:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 23:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 23:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-20 23:20:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-20 23:20:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:20:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:20:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-20 23:20:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-20 23:20:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-20 23:20:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-20 23:20:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-20 23:20:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-20 23:20:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 23:20:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 23:20:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-20 23:20:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-20 23:20:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 23:20:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 23:20:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-20 23:20:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-20 23:20:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-20 23:20:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-20 23:20:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:20:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-20 23:20:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-20 23:20:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-20 23:20:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-20 23:20:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-20 23:20:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-20 23:20:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 23:20:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 23:20:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:20:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:20:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 23:20:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 23:20:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-20 23:20:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-20 23:20:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-20 23:20:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-20 23:20:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-20 23:20:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-20 23:20:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-20 23:20:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-20 23:20:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 23:20:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 23:20:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:20:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:20:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-20 23:20:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-20 23:20:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-20 23:20:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-20 23:20:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-20 23:20:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-20 23:20:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-20 23:20:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-20 23:20:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-20 23:20:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-20 23:20:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-20 23:20:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-20 23:20:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 23:20:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 23:20:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:20:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:20:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-20 23:20:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-20 23:20:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-20 23:20:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-20 23:20:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-20 23:20:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-20 23:20:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-20 23:20:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-20 23:20:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-20 23:20:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-20 23:20:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 23:20:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 23:20:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-20 23:20:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-20 23:20:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 23:20:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 23:20:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-20 23:20:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-20 23:20:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-20 23:20:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-20 23:20:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-20 23:20:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-20 23:20:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-20 23:20:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-20 23:20:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:20:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:20:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-20 23:20:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-20 23:20:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 23:20:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 23:20:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-20 23:20:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-20 23:20:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-20 23:20:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-20 23:20:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:20:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:20:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 23:20:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 23:20:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-11-20 23:20:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-11-20 23:20:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:20:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 23:20:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 23:20:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 23:20:11,842 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:20:11,851 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:20:13,387 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:21:20,495 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:21:30,083 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:21:30,084 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-20 23:21:30,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:21:30 BoogieIcfgContainer [2021-11-20 23:21:30,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:21:30,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:21:30,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:21:30,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:21:30,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:19:49" (1/3) ... [2021-11-20 23:21:30,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4f4cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:21:30, skipping insertion in model container [2021-11-20 23:21:30,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:05" (2/3) ... [2021-11-20 23:21:30,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4f4cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:21:30, skipping insertion in model container [2021-11-20 23:21:30,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:21:30" (3/3) ... [2021-11-20 23:21:30,110 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-20 23:21:30,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:21:30,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:21:30,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:21:30,243 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:21:30,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 23:21:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 6626 states, 4200 states have (on average 1.3340476190476191) internal successors, (5603), 4307 states have internal predecessors, (5603), 2174 states have call successors, (2174), 252 states have call predecessors, (2174), 251 states have return successors, (2170), 2157 states have call predecessors, (2170), 2170 states have call successors, (2170) [2021-11-20 23:21:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-20 23:21:30,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:21:30,462 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:21:30,463 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:21:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:21:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1536983055, now seen corresponding path program 1 times [2021-11-20 23:21:30,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:21:30,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983585551] [2021-11-20 23:21:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:21:30,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:21:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:21:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-11-20 23:21:34,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:21:34,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983585551] [2021-11-20 23:21:34,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983585551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:21:34,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:21:34,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:21:34,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745499287] [2021-11-20 23:21:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:21:34,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:21:34,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:21:34,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:21:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:21:34,214 INFO L87 Difference]: Start difference. First operand has 6626 states, 4200 states have (on average 1.3340476190476191) internal successors, (5603), 4307 states have internal predecessors, (5603), 2174 states have call successors, (2174), 252 states have call predecessors, (2174), 251 states have return successors, (2170), 2157 states have call predecessors, (2170), 2170 states have call successors, (2170) Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 23:21:40,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:21:42,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:04,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:09,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:11,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:13,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:27,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:40,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:43,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:47,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:50,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:22:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:22:51,159 INFO L93 Difference]: Finished difference Result 16031 states and 24094 transitions. [2021-11-20 23:22:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:22:51,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 151 [2021-11-20 23:22:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:22:51,308 INFO L225 Difference]: With dead ends: 16031 [2021-11-20 23:22:51,309 INFO L226 Difference]: Without dead ends: 9285 [2021-11-20 23:22:51,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:22:51,398 INFO L933 BasicCegarLoop]: 10551 mSDtfsCounter, 6030 mSDsluCounter, 51490 mSDsCounter, 0 mSdLazyCounter, 9273 mSolverCounterSat, 1948 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6037 SdHoareTripleChecker+Valid, 57864 SdHoareTripleChecker+Invalid, 11231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1948 IncrementalHoareTripleChecker+Valid, 9273 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:22:51,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6037 Valid, 57864 Invalid, 11231 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1948 Valid, 9273 Invalid, 10 Unknown, 0 Unchecked, 74.7s Time] [2021-11-20 23:22:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2021-11-20 23:22:52,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 9190. [2021-11-20 23:22:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 5750 states have (on average 1.3140869565217392) internal successors, (7556), 5924 states have internal predecessors, (7556), 3031 states have call successors, (3031), 413 states have call predecessors, (3031), 407 states have return successors, (3066), 2984 states have call predecessors, (3066), 3031 states have call successors, (3066) [2021-11-20 23:22:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 13653 transitions. [2021-11-20 23:22:53,051 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 13653 transitions. Word has length 151 [2021-11-20 23:22:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:22:53,057 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 13653 transitions. [2021-11-20 23:22:53,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 23:22:53,059 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 13653 transitions. [2021-11-20 23:22:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 23:22:53,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:22:53,082 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:22:53,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:22:53,082 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:22:53,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:22:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1058012264, now seen corresponding path program 1 times [2021-11-20 23:22:53,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:22:53,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900886092] [2021-11-20 23:22:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:22:53,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:22:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:22:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-11-20 23:22:54,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:22:54,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900886092] [2021-11-20 23:22:54,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900886092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:22:54,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:22:54,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:22:54,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262678930] [2021-11-20 23:22:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:22:54,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:22:54,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:22:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:22:54,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:22:54,248 INFO L87 Difference]: Start difference. First operand 9190 states and 13653 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:22:57,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:03,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:08,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:10,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:12,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:14,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:16,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:28,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:31,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:33,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:23:33,997 INFO L93 Difference]: Finished difference Result 16147 states and 24118 transitions. [2021-11-20 23:23:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:23:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 180 [2021-11-20 23:23:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:23:34,109 INFO L225 Difference]: With dead ends: 16147 [2021-11-20 23:23:34,110 INFO L226 Difference]: Without dead ends: 9600 [2021-11-20 23:23:34,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:23:34,179 INFO L933 BasicCegarLoop]: 9373 mSDtfsCounter, 396 mSDsluCounter, 19865 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 89 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 27612 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:23:34,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 27612 Invalid, 2608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 2511 Invalid, 8 Unknown, 0 Unchecked, 38.9s Time] [2021-11-20 23:23:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-11-20 23:23:35,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9192. [2021-11-20 23:23:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9192 states, 5752 states have (on average 1.3139777468706537) internal successors, (7558), 5926 states have internal predecessors, (7558), 3031 states have call successors, (3031), 413 states have call predecessors, (3031), 407 states have return successors, (3066), 2984 states have call predecessors, (3066), 3031 states have call successors, (3066) [2021-11-20 23:23:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9192 states to 9192 states and 13655 transitions. [2021-11-20 23:23:35,419 INFO L78 Accepts]: Start accepts. Automaton has 9192 states and 13655 transitions. Word has length 180 [2021-11-20 23:23:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:23:35,422 INFO L470 AbstractCegarLoop]: Abstraction has 9192 states and 13655 transitions. [2021-11-20 23:23:35,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:23:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 9192 states and 13655 transitions. [2021-11-20 23:23:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 23:23:35,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:23:35,432 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-20 23:23:35,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:23:35,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:23:35,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:23:35,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1818479017, now seen corresponding path program 1 times [2021-11-20 23:23:35,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:23:35,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073646191] [2021-11-20 23:23:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:23:35,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:23:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:23:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-20 23:23:37,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:23:37,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073646191] [2021-11-20 23:23:37,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073646191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:23:37,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:23:37,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 23:23:37,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867513720] [2021-11-20 23:23:37,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:23:37,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:23:37,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:23:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:23:37,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:23:37,905 INFO L87 Difference]: Start difference. First operand 9192 states and 13655 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 23:23:43,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:23:53,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:27,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:29,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:31,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:33,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:35,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:37,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:40,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:24:42,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:25:37,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:09,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:13,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:16,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:18,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:21,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:23,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:25,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:27,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:29,247 INFO L93 Difference]: Finished difference Result 10305 states and 15421 transitions. [2021-11-20 23:26:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 23:26:29,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 201 [2021-11-20 23:26:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:29,363 INFO L225 Difference]: With dead ends: 10305 [2021-11-20 23:26:29,363 INFO L226 Difference]: Without dead ends: 10303 [2021-11-20 23:26:29,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:26:29,375 INFO L933 BasicCegarLoop]: 8987 mSDtfsCounter, 6293 mSDsluCounter, 25466 mSDsCounter, 0 mSdLazyCounter, 31337 mSolverCounterSat, 5467 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7402 SdHoareTripleChecker+Valid, 32389 SdHoareTripleChecker+Invalid, 36821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 5467 IncrementalHoareTripleChecker+Valid, 31337 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:29,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7402 Valid, 32389 Invalid, 36821 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [5467 Valid, 31337 Invalid, 17 Unknown, 0 Unchecked, 168.8s Time] [2021-11-20 23:26:29,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2021-11-20 23:26:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 10095. [2021-11-20 23:26:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10095 states, 6314 states have (on average 1.3094710167880899) internal successors, (8268), 6499 states have internal predecessors, (8268), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 428 states have return successors, (3470), 3318 states have call predecessors, (3470), 3351 states have call successors, (3470) [2021-11-20 23:26:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10095 states to 10095 states and 15089 transitions. [2021-11-20 23:26:30,814 INFO L78 Accepts]: Start accepts. Automaton has 10095 states and 15089 transitions. Word has length 201 [2021-11-20 23:26:30,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:30,816 INFO L470 AbstractCegarLoop]: Abstraction has 10095 states and 15089 transitions. [2021-11-20 23:26:30,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 23:26:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10095 states and 15089 transitions. [2021-11-20 23:26:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-20 23:26:30,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:30,828 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:30,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:26:30,828 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:26:30,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1239346410, now seen corresponding path program 1 times [2021-11-20 23:26:30,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:30,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934099725] [2021-11-20 23:26:30,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:30,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-20 23:26:31,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:31,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934099725] [2021-11-20 23:26:31,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934099725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:31,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:31,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:26:31,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996222418] [2021-11-20 23:26:31,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:31,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:26:31,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:31,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:26:31,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:26:31,778 INFO L87 Difference]: Start difference. First operand 10095 states and 15089 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:26:35,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:43,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:45,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:47,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:49,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:26:58,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:01,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:02,493 INFO L93 Difference]: Finished difference Result 17700 states and 26590 transitions. [2021-11-20 23:27:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:27:02,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 198 [2021-11-20 23:27:02,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:02,580 INFO L225 Difference]: With dead ends: 17700 [2021-11-20 23:27:02,580 INFO L226 Difference]: Without dead ends: 10248 [2021-11-20 23:27:02,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:27:02,641 INFO L933 BasicCegarLoop]: 9227 mSDtfsCounter, 293 mSDsluCounter, 19741 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 99 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 27348 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:02,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 27348 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2460 Invalid, 5 Unknown, 0 Unchecked, 29.9s Time] [2021-11-20 23:27:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10248 states. [2021-11-20 23:27:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10248 to 10097. [2021-11-20 23:27:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10097 states, 6316 states have (on average 1.3093730208993033) internal successors, (8270), 6501 states have internal predecessors, (8270), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 428 states have return successors, (3470), 3318 states have call predecessors, (3470), 3351 states have call successors, (3470) [2021-11-20 23:27:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 15091 transitions. [2021-11-20 23:27:04,153 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 15091 transitions. Word has length 198 [2021-11-20 23:27:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:04,154 INFO L470 AbstractCegarLoop]: Abstraction has 10097 states and 15091 transitions. [2021-11-20 23:27:04,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:27:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 15091 transitions. [2021-11-20 23:27:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 23:27:04,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:04,165 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:04,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:27:04,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:27:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1854989538, now seen corresponding path program 1 times [2021-11-20 23:27:04,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:04,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025931354] [2021-11-20 23:27:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:04,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-20 23:27:05,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:05,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025931354] [2021-11-20 23:27:05,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025931354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:05,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:05,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:27:05,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449867383] [2021-11-20 23:27:05,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:05,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:27:05,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:27:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:27:05,469 INFO L87 Difference]: Start difference. First operand 10097 states and 15091 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:27:08,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:11,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:15,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:21,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:23,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:25,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:30,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:39,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:42,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:44,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:27:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:45,248 INFO L93 Difference]: Finished difference Result 20584 states and 30839 transitions. [2021-11-20 23:27:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:27:45,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 201 [2021-11-20 23:27:45,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:45,338 INFO L225 Difference]: With dead ends: 20584 [2021-11-20 23:27:45,338 INFO L226 Difference]: Without dead ends: 10501 [2021-11-20 23:27:45,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:27:45,408 INFO L933 BasicCegarLoop]: 9225 mSDtfsCounter, 236 mSDsluCounter, 19866 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 66 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 27464 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:45,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 27464 Invalid, 2546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 2471 Invalid, 9 Unknown, 0 Unchecked, 38.8s Time] [2021-11-20 23:27:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10501 states. [2021-11-20 23:27:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10501 to 10101. [2021-11-20 23:27:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 6320 states have (on average 1.3091772151898735) internal successors, (8274), 6505 states have internal predecessors, (8274), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 428 states have return successors, (3470), 3318 states have call predecessors, (3470), 3351 states have call successors, (3470) [2021-11-20 23:27:46,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 15095 transitions. [2021-11-20 23:27:46,650 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 15095 transitions. Word has length 201 [2021-11-20 23:27:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:46,653 INFO L470 AbstractCegarLoop]: Abstraction has 10101 states and 15095 transitions. [2021-11-20 23:27:46,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:27:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 15095 transitions. [2021-11-20 23:27:46,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-20 23:27:46,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:46,664 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:27:46,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:27:46,665 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:27:46,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:46,666 INFO L85 PathProgramCache]: Analyzing trace with hash 377142860, now seen corresponding path program 1 times [2021-11-20 23:27:46,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:46,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423550802] [2021-11-20 23:27:46,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:46,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-20 23:27:47,866 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423550802] [2021-11-20 23:27:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423550802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:47,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:47,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:27:47,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927441965] [2021-11-20 23:27:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:47,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:27:47,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:47,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:27:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:27:47,869 INFO L87 Difference]: Start difference. First operand 10101 states and 15095 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:27:52,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:03,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:05,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:07,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:20,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:22,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:24,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:27,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:29,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:28:30,037 INFO L93 Difference]: Finished difference Result 17565 states and 26366 transitions. [2021-11-20 23:28:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:28:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 218 [2021-11-20 23:28:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:28:30,108 INFO L225 Difference]: With dead ends: 17565 [2021-11-20 23:28:30,108 INFO L226 Difference]: Without dead ends: 10109 [2021-11-20 23:28:30,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:28:30,163 INFO L933 BasicCegarLoop]: 9014 mSDtfsCounter, 0 mSDsluCounter, 29464 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36053 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:28:30,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36053 Invalid, 3252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3243 Invalid, 9 Unknown, 0 Unchecked, 41.5s Time] [2021-11-20 23:28:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2021-11-20 23:28:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 10109. [2021-11-20 23:28:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 6326 states have (on average 1.3088839709136895) internal successors, (8280), 6511 states have internal predecessors, (8280), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 430 states have return successors, (3482), 3320 states have call predecessors, (3482), 3351 states have call successors, (3482) [2021-11-20 23:28:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 15113 transitions. [2021-11-20 23:28:31,359 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 15113 transitions. Word has length 218 [2021-11-20 23:28:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:28:31,360 INFO L470 AbstractCegarLoop]: Abstraction has 10109 states and 15113 transitions. [2021-11-20 23:28:31,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:28:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 15113 transitions. [2021-11-20 23:28:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-20 23:28:31,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:28:31,371 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:28:31,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:28:31,372 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:28:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:28:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash -201250141, now seen corresponding path program 1 times [2021-11-20 23:28:31,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:28:31,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525980660] [2021-11-20 23:28:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:28:31,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:28:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:28:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-20 23:28:32,139 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:28:32,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525980660] [2021-11-20 23:28:32,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525980660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:28:32,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:28:32,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:28:32,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728725524] [2021-11-20 23:28:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:28:32,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:28:32,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:28:32,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:28:32,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:28:32,142 INFO L87 Difference]: Start difference. First operand 10109 states and 15113 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:28:36,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:47,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:49,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:51,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:54,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:56,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:28:58,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:00,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:02,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:04,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:07,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:09,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:11,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:16,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:27,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:30,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:29:30,887 INFO L93 Difference]: Finished difference Result 17648 states and 26504 transitions. [2021-11-20 23:29:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:29:30,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 231 [2021-11-20 23:29:30,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:29:30,955 INFO L225 Difference]: With dead ends: 17648 [2021-11-20 23:29:30,955 INFO L226 Difference]: Without dead ends: 10188 [2021-11-20 23:29:31,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:29:31,002 INFO L933 BasicCegarLoop]: 9109 mSDtfsCounter, 61 mSDsluCounter, 18243 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 4 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 26111 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:29:31,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 26111 Invalid, 3641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3621 Invalid, 16 Unknown, 0 Unchecked, 58.1s Time] [2021-11-20 23:29:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10188 states. [2021-11-20 23:29:32,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10188 to 10111. [2021-11-20 23:29:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 6328 states have (on average 1.3087863463969658) internal successors, (8282), 6513 states have internal predecessors, (8282), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 430 states have return successors, (3482), 3320 states have call predecessors, (3482), 3351 states have call successors, (3482) [2021-11-20 23:29:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 15115 transitions. [2021-11-20 23:29:32,171 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 15115 transitions. Word has length 231 [2021-11-20 23:29:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:29:32,172 INFO L470 AbstractCegarLoop]: Abstraction has 10111 states and 15115 transitions. [2021-11-20 23:29:32,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:29:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 15115 transitions. [2021-11-20 23:29:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 23:29:32,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:29:32,183 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:29:32,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:29:32,184 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:29:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:29:32,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1682363695, now seen corresponding path program 1 times [2021-11-20 23:29:32,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:29:32,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954946609] [2021-11-20 23:29:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:29:32,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:29:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:29:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-20 23:29:33,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:29:33,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954946609] [2021-11-20 23:29:33,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954946609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:29:33,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:29:33,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:29:33,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409583200] [2021-11-20 23:29:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:29:33,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:29:33,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:29:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:29:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:29:33,006 INFO L87 Difference]: Start difference. First operand 10111 states and 15115 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:29:37,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:50,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:52,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:54,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:57,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:29:59,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:01,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:03,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:05,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:08,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:10,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:12,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:14,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:16,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:20,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:30,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:33,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:35,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:38,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:40,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:30:40,893 INFO L93 Difference]: Finished difference Result 17652 states and 26508 transitions. [2021-11-20 23:30:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:30:40,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 232 [2021-11-20 23:30:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:30:40,970 INFO L225 Difference]: With dead ends: 17652 [2021-11-20 23:30:40,971 INFO L226 Difference]: Without dead ends: 10190 [2021-11-20 23:30:41,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:30:41,024 INFO L933 BasicCegarLoop]: 9117 mSDtfsCounter, 61 mSDsluCounter, 18250 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 3 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 26125 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:30:41,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 26125 Invalid, 3644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3623 Invalid, 18 Unknown, 0 Unchecked, 67.0s Time] [2021-11-20 23:30:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2021-11-20 23:30:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 10111. [2021-11-20 23:30:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 6328 states have (on average 1.3087863463969658) internal successors, (8282), 6513 states have internal predecessors, (8282), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 430 states have return successors, (3482), 3320 states have call predecessors, (3482), 3351 states have call successors, (3482) [2021-11-20 23:30:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 15115 transitions. [2021-11-20 23:30:42,136 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 15115 transitions. Word has length 232 [2021-11-20 23:30:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:30:42,138 INFO L470 AbstractCegarLoop]: Abstraction has 10111 states and 15115 transitions. [2021-11-20 23:30:42,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:30:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 15115 transitions. [2021-11-20 23:30:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 23:30:42,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:30:42,149 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:30:42,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:30:42,150 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:30:42,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:30:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash -134865346, now seen corresponding path program 1 times [2021-11-20 23:30:42,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:30:42,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61814121] [2021-11-20 23:30:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:30:42,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:30:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:30:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-20 23:30:43,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:30:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61814121] [2021-11-20 23:30:43,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61814121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:30:43,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:30:43,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:30:43,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243276375] [2021-11-20 23:30:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:30:43,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:30:43,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:30:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:30:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:30:43,185 INFO L87 Difference]: Start difference. First operand 10111 states and 15115 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:30:46,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:30:50,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:01,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:03,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:05,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:08,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:10,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:13,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:15,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:17,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:19,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:21,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:23,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:25,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:27,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:43,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:45,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:48,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:31:49,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:31:49,305 INFO L93 Difference]: Finished difference Result 17652 states and 26507 transitions. [2021-11-20 23:31:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:31:49,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 232 [2021-11-20 23:31:49,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:31:49,520 INFO L225 Difference]: With dead ends: 17652 [2021-11-20 23:31:49,520 INFO L226 Difference]: Without dead ends: 10190 [2021-11-20 23:31:49,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:31:49,557 INFO L933 BasicCegarLoop]: 9109 mSDtfsCounter, 59 mSDsluCounter, 18297 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 5 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 26154 SdHoareTripleChecker+Invalid, 3693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:31:49,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 26154 Invalid, 3693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 3672 Invalid, 16 Unknown, 0 Unchecked, 65.3s Time] [2021-11-20 23:31:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2021-11-20 23:31:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 10114. [2021-11-20 23:31:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10114 states, 6331 states have (on average 1.3086400252724688) internal successors, (8285), 6516 states have internal predecessors, (8285), 3351 states have call successors, (3351), 413 states have call predecessors, (3351), 430 states have return successors, (3482), 3320 states have call predecessors, (3482), 3351 states have call successors, (3482) [2021-11-20 23:31:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10114 states to 10114 states and 15118 transitions. [2021-11-20 23:31:50,489 INFO L78 Accepts]: Start accepts. Automaton has 10114 states and 15118 transitions. Word has length 232 [2021-11-20 23:31:50,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:31:50,490 INFO L470 AbstractCegarLoop]: Abstraction has 10114 states and 15118 transitions. [2021-11-20 23:31:50,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:31:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 10114 states and 15118 transitions. [2021-11-20 23:31:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 23:31:50,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:31:50,500 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:31:50,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:31:50,500 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:31:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:31:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1359741612, now seen corresponding path program 1 times [2021-11-20 23:31:50,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:31:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347263056] [2021-11-20 23:31:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:31:50,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:31:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:31:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-20 23:31:51,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:31:51,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347263056] [2021-11-20 23:31:51,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347263056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:31:51,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:31:51,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:31:51,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829973457] [2021-11-20 23:31:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:31:51,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:31:51,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:31:51,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:31:51,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:31:51,255 INFO L87 Difference]: Start difference. First operand 10114 states and 15118 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 23:31:55,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:00,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:04,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:12,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:14,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:16,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:18,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:21,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []