./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:33:17,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:33:17,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:33:17,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:33:17,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:33:17,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:33:17,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:33:17,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:33:17,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:33:17,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:33:17,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:33:17,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:33:17,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:33:17,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:33:17,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:33:17,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:33:17,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:33:17,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:33:17,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:33:17,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:33:17,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:33:17,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:33:17,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:33:17,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:33:17,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:33:17,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:33:17,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:33:17,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:33:17,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:33:17,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:33:17,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:33:17,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:33:17,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:33:17,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:33:17,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:33:17,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:33:17,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:33:17,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:33:17,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:33:17,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:33:17,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:33:17,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:33:17,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:33:17,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:33:17,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:33:17,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:33:17,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:33:17,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:33:17,562 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:33:17,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:33:17,562 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:33:17,562 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:33:17,563 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:33:17,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:33:17,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:33:17,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:33:17,564 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:33:17,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:33:17,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:33:17,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:33:17,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:33:17,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:33:17,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:33:17,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:33:17,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:33:17,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:33:17,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:33:17,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:33:17,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:33:17,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:33:17,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:33:17,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:33:17,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:33:17,569 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:33:17,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:33:17,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:33:17,570 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:33:17,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:33:17,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:33:17,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:33:17,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 [2022-11-03 03:33:17,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:33:17,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:33:17,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:33:17,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:33:17,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:33:17,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 03:33:18,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/data/3db58bcec/9834b66ef60d4edb969804a645513b20/FLAG43a7b0f4a [2022-11-03 03:33:19,077 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:33:19,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 03:33:19,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/data/3db58bcec/9834b66ef60d4edb969804a645513b20/FLAG43a7b0f4a [2022-11-03 03:33:19,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/data/3db58bcec/9834b66ef60d4edb969804a645513b20 [2022-11-03 03:33:19,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:33:19,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:33:19,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:33:19,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:33:19,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:33:19,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:33:19" (1/1) ... [2022-11-03 03:33:19,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f15ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:19, skipping insertion in model container [2022-11-03 03:33:19,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:33:19" (1/1) ... [2022-11-03 03:33:19,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:33:19,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:33:26,384 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_74cf9ee5-e86a-4d94-ad22-31f6135119e5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2022-11-03 03:33:26,387 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_74cf9ee5-e86a-4d94-ad22-31f6135119e5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2022-11-03 03:33:26,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:33:26,491 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:33:27,422 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_74cf9ee5-e86a-4d94-ad22-31f6135119e5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2022-11-03 03:33:27,422 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_74cf9ee5-e86a-4d94-ad22-31f6135119e5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2022-11-03 03:33:27,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:33:27,944 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:33:27,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27 WrapperNode [2022-11-03 03:33:27,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:33:27,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:33:27,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:33:27,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:33:27,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,518 INFO L138 Inliner]: procedures = 821, calls = 5772, calls flagged for inlining = 428, calls inlined = 368, statements flattened = 11456 [2022-11-03 03:33:28,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:33:28,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:33:28,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:33:28,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:33:28,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:28,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:29,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:29,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:29,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:33:29,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:33:29,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:33:29,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:33:29,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (1/1) ... [2022-11-03 03:33:29,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:33:29,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:33:29,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:33:29,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cf9ee5-e86a-4d94-ad22-31f6135119e5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:33:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:33:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:33:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-03 03:33:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-03 03:33:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-03 03:33:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-03 03:33:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-03 03:33:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-03 03:33:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-03 03:33:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-03 03:33:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-03 03:33:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-03 03:33:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:33:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:33:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-03 03:33:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-03 03:33:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:33:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:33:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-03 03:33:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-03 03:33:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:33:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:33:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-03 03:33:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-03 03:33:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-03 03:33:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-03 03:33:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:33:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:33:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:33:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:33:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-03 03:33:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-03 03:33:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:33:29,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:33:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:33:29,374 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:33:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-03 03:33:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-03 03:33:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-11-03 03:33:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-11-03 03:33:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:33:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:33:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-03 03:33:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-03 03:33:29,377 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:33:29,377 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:33:29,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:33:29,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:33:29,378 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-03 03:33:29,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-03 03:33:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:33:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-03 03:33:29,379 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-03 03:33:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-11-03 03:33:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-11-03 03:33:29,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 03:33:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 03:33:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:33:29,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:33:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-03 03:33:29,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-03 03:33:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 03:33:29,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 03:33:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:33:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:33:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:33:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:33:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-03 03:33:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-03 03:33:29,384 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-03 03:33:29,384 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-03 03:33:29,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:33:29,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:33:29,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:33:29,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:33:29,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:33:29,385 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-03 03:33:29,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-03 03:33:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 03:33:29,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-03 03:33:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 03:33:29,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 03:33:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:33:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:33:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-03 03:33:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-03 03:33:29,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-03 03:33:29,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-03 03:33:29,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:33:29,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:33:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:33:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-03 03:33:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-03 03:33:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-03 03:33:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-03 03:33:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-03 03:33:29,392 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-03 03:33:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:33:29,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:33:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:33:29,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:33:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:33:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:33:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-03 03:33:29,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-03 03:33:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:33:29,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:33:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-03 03:33:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-03 03:33:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-03 03:33:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-03 03:33:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-03 03:33:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-03 03:33:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:33:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:33:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-03 03:33:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-03 03:33:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:33:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:33:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-03 03:33:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-03 03:33:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:33:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:33:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-03 03:33:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-03 03:33:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:33:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:33:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-03 03:33:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-03 03:33:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:33:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:33:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-03 03:33:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-03 03:33:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:33:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:33:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:33:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:33:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:33:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 03:33:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 03:33:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-03 03:33:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-03 03:33:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:33:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:33:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-03 03:33:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-03 03:33:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 03:33:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-03 03:33:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-03 03:33:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:33:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:33:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-03 03:33:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-03 03:33:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-03 03:33:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-03 03:33:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:33:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:33:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 03:33:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 03:33:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 03:33:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 03:33:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-03 03:33:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-03 03:33:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:33:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:33:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 03:33:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 03:33:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 03:33:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 03:33:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-03 03:33:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-03 03:33:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 03:33:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 03:33:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-11-03 03:33:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-11-03 03:33:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-03 03:33:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-03 03:33:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-03 03:33:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-03 03:33:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-03 03:33:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-03 03:33:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:33:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:33:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:33:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:33:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-03 03:33:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-03 03:33:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 03:33:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 03:33:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-03 03:33:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-03 03:33:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:33:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:33:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-03 03:33:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-03 03:33:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:33:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:33:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2022-11-03 03:33:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2022-11-03 03:33:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-03 03:33:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-03 03:33:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 03:33:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 03:33:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-03 03:33:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-03 03:33:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:33:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:33:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-03 03:33:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-03 03:33:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-11-03 03:33:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-11-03 03:33:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:33:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:33:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:33:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-03 03:33:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-03 03:33:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:33:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:33:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-03 03:33:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-03 03:33:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 03:33:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 03:33:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-03 03:33:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-03 03:33:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:33:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:33:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-03 03:33:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-03 03:33:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 03:33:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 03:33:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-03 03:33:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-03 03:33:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-03 03:33:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-03 03:33:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:33:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:33:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:33:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:33:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 03:33:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 03:33:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-03 03:33:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-03 03:33:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:33:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:33:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:33:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:33:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-03 03:33:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-03 03:33:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-03 03:33:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-03 03:33:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-03 03:33:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-03 03:33:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 03:33:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 03:33:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-03 03:33:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-03 03:33:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:33:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:33:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-03 03:33:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-03 03:33:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:33:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:33:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-11-03 03:33:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-11-03 03:33:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:33:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:33:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:33:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:33:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-03 03:33:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-03 03:33:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:33:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 03:33:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 03:33:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-03 03:33:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-03 03:33:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 03:33:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 03:33:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 03:33:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 03:33:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:33:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:33:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-03 03:33:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-03 03:33:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:33:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 03:33:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 03:33:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:33:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:33:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:33:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 03:33:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 03:33:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:33:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:33:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:33:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:33:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:33:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:33:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-03 03:33:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-03 03:33:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:33:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:33:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-03 03:33:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-03 03:33:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-03 03:33:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-03 03:33:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:33:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:33:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-03 03:33:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-03 03:33:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:33:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:33:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:33:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:33:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:33:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:33:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-03 03:33:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-03 03:33:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-03 03:33:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-03 03:33:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 03:33:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 03:33:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-03 03:33:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-03 03:33:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-03 03:33:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-03 03:33:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 03:33:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 03:33:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-03 03:33:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-03 03:33:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:33:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:33:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:33:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-03 03:33:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-03 03:33:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-11-03 03:33:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-11-03 03:33:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:33:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:33:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-03 03:33:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-03 03:33:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-03 03:33:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-03 03:33:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-03 03:33:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-03 03:33:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-03 03:33:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-03 03:33:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 03:33:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 03:33:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 03:33:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 03:33:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-03 03:33:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-03 03:33:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-03 03:33:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-03 03:33:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-03 03:33:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-03 03:33:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-03 03:33:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-03 03:33:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-03 03:33:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-03 03:33:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-03 03:33:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-03 03:33:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 03:33:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 03:33:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 03:33:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 03:33:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:33:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:33:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:33:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:33:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:33:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-11-03 03:33:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-11-03 03:33:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:33:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:33:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 03:33:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 03:33:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 03:33:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 03:33:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 03:33:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 03:33:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 03:33:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 03:33:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:33:29,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:33:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-11-03 03:33:29,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-11-03 03:33:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-03 03:33:29,457 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-03 03:33:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:33:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:33:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-03 03:33:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-03 03:33:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-03 03:33:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-03 03:33:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-03 03:33:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-03 03:33:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:33:29,459 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:33:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-03 03:33:29,459 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-03 03:33:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-03 03:33:29,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-03 03:33:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 03:33:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 03:33:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-03 03:33:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-03 03:33:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:33:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:33:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-03 03:33:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-03 03:33:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:33:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:33:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-03 03:33:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-03 03:33:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:33:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:33:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-03 03:33:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-03 03:33:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2022-11-03 03:33:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2022-11-03 03:33:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-03 03:33:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-03 03:33:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 03:33:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 03:33:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-03 03:33:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-03 03:33:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:33:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:33:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:33:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:33:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-03 03:33:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-03 03:33:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-03 03:33:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-03 03:33:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 03:33:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 03:33:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:33:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:33:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-03 03:33:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-03 03:33:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:33:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-03 03:33:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-03 03:33:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:33:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:33:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 03:33:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 03:33:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-11-03 03:33:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-11-03 03:33:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 03:33:31,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:33:31,096 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:33:31,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:33:50,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:33:57,433 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:34:00,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:34:00,434 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-03 03:34:00,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:34:00 BoogieIcfgContainer [2022-11-03 03:34:00,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:34:00,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:34:00,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:34:00,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:34:00,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:33:19" (1/3) ... [2022-11-03 03:34:00,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68413fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:34:00, skipping insertion in model container [2022-11-03 03:34:00,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:33:27" (2/3) ... [2022-11-03 03:34:00,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68413fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:34:00, skipping insertion in model container [2022-11-03 03:34:00,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:34:00" (3/3) ... [2022-11-03 03:34:00,451 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-03 03:34:00,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:34:00,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:34:00,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:34:00,590 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40b08c80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:34:00,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:34:00,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) [2022-11-03 03:34:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-03 03:34:00,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:00,662 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:00,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash -637935520, now seen corresponding path program 1 times [2022-11-03 03:34:00,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:00,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822784676] [2022-11-03 03:34:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:00,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 03:34:02,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:02,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822784676] [2022-11-03 03:34:02,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822784676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:02,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:02,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:02,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362181658] [2022-11-03 03:34:02,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:02,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:02,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:02,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:02,583 INFO L87 Difference]: Start difference. First operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:34:08,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:12,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:12,289 INFO L93 Difference]: Finished difference Result 9726 states and 14436 transitions. [2022-11-03 03:34:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:12,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 378 [2022-11-03 03:34:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:12,351 INFO L225 Difference]: With dead ends: 9726 [2022-11-03 03:34:12,351 INFO L226 Difference]: Without dead ends: 6318 [2022-11-03 03:34:12,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:12,377 INFO L413 NwaCegarLoop]: 5488 mSDtfsCounter, 4425 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:12,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 9841 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1257 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 03:34:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2022-11-03 03:34:12,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 6315. [2022-11-03 03:34:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 3623 states have (on average 1.304995859784709) internal successors, (4728), 3770 states have internal predecessors, (4728), 2277 states have call successors, (2277), 415 states have call predecessors, (2277), 414 states have return successors, (2277), 2227 states have call predecessors, (2277), 2277 states have call successors, (2277) [2022-11-03 03:34:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 9282 transitions. [2022-11-03 03:34:13,076 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 9282 transitions. Word has length 378 [2022-11-03 03:34:13,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:13,081 INFO L495 AbstractCegarLoop]: Abstraction has 6315 states and 9282 transitions. [2022-11-03 03:34:13,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:34:13,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 9282 transitions. [2022-11-03 03:34:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-11-03 03:34:13,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:13,104 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:13,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:34:13,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1469055558, now seen corresponding path program 1 times [2022-11-03 03:34:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:13,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692073769] [2022-11-03 03:34:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:13,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-03 03:34:14,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:14,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692073769] [2022-11-03 03:34:14,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692073769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:14,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:14,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:14,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125923904] [2022-11-03 03:34:14,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:14,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:14,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:14,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:14,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:14,048 INFO L87 Difference]: Start difference. First operand 6315 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:34:19,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:22,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:23,243 INFO L93 Difference]: Finished difference Result 18446 states and 27112 transitions. [2022-11-03 03:34:23,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:23,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 379 [2022-11-03 03:34:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:23,343 INFO L225 Difference]: With dead ends: 18446 [2022-11-03 03:34:23,343 INFO L226 Difference]: Without dead ends: 12196 [2022-11-03 03:34:23,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:23,383 INFO L413 NwaCegarLoop]: 6319 mSDtfsCounter, 4541 mSDsluCounter, 4836 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 10586 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:23,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 10586 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1397 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 03:34:23,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12196 states. [2022-11-03 03:34:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12196 to 12189. [2022-11-03 03:34:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12189 states, 6981 states have (on average 1.2996705343074058) internal successors, (9073), 7267 states have internal predecessors, (9073), 4395 states have call successors, (4395), 815 states have call predecessors, (4395), 812 states have return successors, (4397), 4298 states have call predecessors, (4397), 4395 states have call successors, (4397) [2022-11-03 03:34:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12189 states to 12189 states and 17865 transitions. [2022-11-03 03:34:24,441 INFO L78 Accepts]: Start accepts. Automaton has 12189 states and 17865 transitions. Word has length 379 [2022-11-03 03:34:24,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:24,446 INFO L495 AbstractCegarLoop]: Abstraction has 12189 states and 17865 transitions. [2022-11-03 03:34:24,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:34:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 12189 states and 17865 transitions. [2022-11-03 03:34:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-03 03:34:24,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:24,466 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:24,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:34:24,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:24,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:24,467 INFO L85 PathProgramCache]: Analyzing trace with hash 280475068, now seen corresponding path program 1 times [2022-11-03 03:34:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:24,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352345267] [2022-11-03 03:34:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:24,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2022-11-03 03:34:25,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:25,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352345267] [2022-11-03 03:34:25,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352345267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:25,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:25,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:25,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155402533] [2022-11-03 03:34:25,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:25,165 INFO L87 Difference]: Start difference. First operand 12189 states and 17865 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 03:34:31,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:33,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:34,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:34,009 INFO L93 Difference]: Finished difference Result 35933 states and 52621 transitions. [2022-11-03 03:34:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:34,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 403 [2022-11-03 03:34:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:34,184 INFO L225 Difference]: With dead ends: 35933 [2022-11-03 03:34:34,184 INFO L226 Difference]: Without dead ends: 23809 [2022-11-03 03:34:34,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:34,259 INFO L413 NwaCegarLoop]: 6355 mSDtfsCounter, 4728 mSDsluCounter, 4888 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 10653 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:34,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4728 Valid, 10653 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1391 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 03:34:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23809 states. [2022-11-03 03:34:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23809 to 23799. [2022-11-03 03:34:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23799 states, 13675 states have (on average 1.2985740402193784) internal successors, (17758), 14236 states have internal predecessors, (17758), 8521 states have call successors, (8521), 1608 states have call predecessors, (8521), 1602 states have return successors, (8525), 8327 states have call predecessors, (8525), 8521 states have call successors, (8525) [2022-11-03 03:34:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23799 states to 23799 states and 34804 transitions. [2022-11-03 03:34:36,140 INFO L78 Accepts]: Start accepts. Automaton has 23799 states and 34804 transitions. Word has length 403 [2022-11-03 03:34:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:36,141 INFO L495 AbstractCegarLoop]: Abstraction has 23799 states and 34804 transitions. [2022-11-03 03:34:36,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 03:34:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 23799 states and 34804 transitions. [2022-11-03 03:34:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-03 03:34:36,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:36,172 INFO L195 NwaCegarLoop]: trace histogram [34, 32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:36,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:34:36,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:36,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1457570332, now seen corresponding path program 1 times [2022-11-03 03:34:36,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:36,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171616414] [2022-11-03 03:34:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4107 trivial. 0 not checked. [2022-11-03 03:34:36,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:36,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171616414] [2022-11-03 03:34:36,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171616414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:36,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:36,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:36,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131385843] [2022-11-03 03:34:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:36,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:36,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:36,946 INFO L87 Difference]: Start difference. First operand 23799 states and 34804 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:34:43,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:44,684 INFO L93 Difference]: Finished difference Result 50103 states and 73118 transitions. [2022-11-03 03:34:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:44,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2022-11-03 03:34:44,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:44,876 INFO L225 Difference]: With dead ends: 50103 [2022-11-03 03:34:44,876 INFO L226 Difference]: Without dead ends: 26369 [2022-11-03 03:34:45,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:45,006 INFO L413 NwaCegarLoop]: 5667 mSDtfsCounter, 3447 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 9934 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:45,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 9934 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1290 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 03:34:45,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26369 states. [2022-11-03 03:34:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26369 to 26367. [2022-11-03 03:34:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26367 states, 15179 states have (on average 1.2957375321167401) internal successors, (19668), 15787 states have internal predecessors, (19668), 9366 states have call successors, (9366), 1827 states have call predecessors, (9366), 1821 states have return successors, (9370), 9156 states have call predecessors, (9370), 9366 states have call successors, (9370) [2022-11-03 03:34:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26367 states to 26367 states and 38404 transitions. [2022-11-03 03:34:46,882 INFO L78 Accepts]: Start accepts. Automaton has 26367 states and 38404 transitions. Word has length 420 [2022-11-03 03:34:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:46,885 INFO L495 AbstractCegarLoop]: Abstraction has 26367 states and 38404 transitions. [2022-11-03 03:34:46,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:34:46,885 INFO L276 IsEmpty]: Start isEmpty. Operand 26367 states and 38404 transitions. [2022-11-03 03:34:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-11-03 03:34:46,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:46,913 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:46,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:34:46,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:46,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1598464471, now seen corresponding path program 1 times [2022-11-03 03:34:46,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:46,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243506007] [2022-11-03 03:34:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:46,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2022-11-03 03:34:47,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243506007] [2022-11-03 03:34:47,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243506007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:47,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:47,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358401229] [2022-11-03 03:34:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:47,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:47,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:47,843 INFO L87 Difference]: Start difference. First operand 26367 states and 38404 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:34:55,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:56,366 INFO L93 Difference]: Finished difference Result 67340 states and 97614 transitions. [2022-11-03 03:34:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 434 [2022-11-03 03:34:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:56,589 INFO L225 Difference]: With dead ends: 67340 [2022-11-03 03:34:56,589 INFO L226 Difference]: Without dead ends: 41038 [2022-11-03 03:34:56,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:56,688 INFO L413 NwaCegarLoop]: 5292 mSDtfsCounter, 3630 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:56,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3631 Valid, 9554 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 03:34:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41038 states. [2022-11-03 03:34:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41038 to 41018. [2022-11-03 03:34:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41018 states, 23294 states have (on average 1.2789130248132565) internal successors, (29791), 24253 states have internal predecessors, (29791), 14712 states have call successors, (14712), 3030 states have call predecessors, (14712), 3011 states have return successors, (14740), 14365 states have call predecessors, (14740), 14712 states have call successors, (14740) [2022-11-03 03:34:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41018 states to 41018 states and 59243 transitions. [2022-11-03 03:34:59,278 INFO L78 Accepts]: Start accepts. Automaton has 41018 states and 59243 transitions. Word has length 434 [2022-11-03 03:34:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:59,279 INFO L495 AbstractCegarLoop]: Abstraction has 41018 states and 59243 transitions. [2022-11-03 03:34:59,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:34:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 41018 states and 59243 transitions. [2022-11-03 03:34:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-11-03 03:34:59,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:59,302 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:59,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:34:59,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:59,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1966946504, now seen corresponding path program 1 times [2022-11-03 03:34:59,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:59,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307858451] [2022-11-03 03:34:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:59,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4521 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2022-11-03 03:35:00,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:00,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307858451] [2022-11-03 03:35:00,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307858451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:00,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:00,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:00,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617014667] [2022-11-03 03:35:00,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:00,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:00,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:00,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:00,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:00,412 INFO L87 Difference]: Start difference. First operand 41018 states and 59243 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-03 03:35:08,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:09,329 INFO L93 Difference]: Finished difference Result 99764 states and 144121 transitions. [2022-11-03 03:35:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 439 [2022-11-03 03:35:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:09,800 INFO L225 Difference]: With dead ends: 99764 [2022-11-03 03:35:09,800 INFO L226 Difference]: Without dead ends: 59151 [2022-11-03 03:35:09,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:09,952 INFO L413 NwaCegarLoop]: 6510 mSDtfsCounter, 4380 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4380 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:09,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4380 Valid, 10791 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1502 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 03:35:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59151 states. [2022-11-03 03:35:12,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59151 to 59141. [2022-11-03 03:35:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59141 states, 33627 states have (on average 1.2779909001695067) internal successors, (42975), 34995 states have internal predecessors, (42975), 21148 states have call successors, (21148), 4391 states have call predecessors, (21148), 4365 states have return successors, (21180), 20646 states have call predecessors, (21180), 21148 states have call successors, (21180) [2022-11-03 03:35:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59141 states to 59141 states and 85303 transitions. [2022-11-03 03:35:13,159 INFO L78 Accepts]: Start accepts. Automaton has 59141 states and 85303 transitions. Word has length 439 [2022-11-03 03:35:13,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:13,161 INFO L495 AbstractCegarLoop]: Abstraction has 59141 states and 85303 transitions. [2022-11-03 03:35:13,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-03 03:35:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59141 states and 85303 transitions. [2022-11-03 03:35:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-03 03:35:13,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:13,191 INFO L195 NwaCegarLoop]: trace histogram [38, 33, 33, 33, 33, 33, 33, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:35:13,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:35:13,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:13,193 INFO L85 PathProgramCache]: Analyzing trace with hash -198035033, now seen corresponding path program 1 times [2022-11-03 03:35:13,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:13,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426830966] [2022-11-03 03:35:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:13,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4635 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4628 trivial. 0 not checked. [2022-11-03 03:35:14,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:14,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426830966] [2022-11-03 03:35:14,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426830966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:14,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:14,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:14,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704964076] [2022-11-03 03:35:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:14,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:14,115 INFO L87 Difference]: Start difference. First operand 59141 states and 85303 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 03:35:19,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:24,802 INFO L93 Difference]: Finished difference Result 145083 states and 209337 transitions. [2022-11-03 03:35:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 476 [2022-11-03 03:35:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:25,539 INFO L225 Difference]: With dead ends: 145083 [2022-11-03 03:35:25,540 INFO L226 Difference]: Without dead ends: 86347 [2022-11-03 03:35:25,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:25,702 INFO L413 NwaCegarLoop]: 8473 mSDtfsCounter, 4728 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 12769 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:25,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4728 Valid, 12769 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 03:35:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86347 states. [2022-11-03 03:35:29,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86347 to 86321. [2022-11-03 03:35:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86321 states, 49169 states have (on average 1.2783461123878868) internal successors, (62855), 51171 states have internal predecessors, (62855), 30776 states have call successors, (30776), 6413 states have call predecessors, (30776), 6375 states have return successors, (30824), 30034 states have call predecessors, (30824), 30776 states have call successors, (30824) [2022-11-03 03:35:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86321 states to 86321 states and 124455 transitions. [2022-11-03 03:35:30,016 INFO L78 Accepts]: Start accepts. Automaton has 86321 states and 124455 transitions. Word has length 476 [2022-11-03 03:35:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:30,017 INFO L495 AbstractCegarLoop]: Abstraction has 86321 states and 124455 transitions. [2022-11-03 03:35:30,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 03:35:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 86321 states and 124455 transitions. [2022-11-03 03:35:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-11-03 03:35:30,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:30,049 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:35:30,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:35:30,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:30,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:30,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1595003230, now seen corresponding path program 1 times [2022-11-03 03:35:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:30,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057835975] [2022-11-03 03:35:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:30,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:31,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4746 trivial. 0 not checked. [2022-11-03 03:35:31,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:31,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057835975] [2022-11-03 03:35:31,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057835975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:31,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:31,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:31,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383039663] [2022-11-03 03:35:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:31,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:31,624 INFO L87 Difference]: Start difference. First operand 86321 states and 124455 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 03:35:37,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:43,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []