./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/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 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 --- 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 02:02:46,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:02:46,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:02:46,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:02:46,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:02:46,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:02:46,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:02:46,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:02:46,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:02:46,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:02:46,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:02:46,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:02:46,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:02:46,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:02:46,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:02:46,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:02:46,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:02:46,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:02:46,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:02:46,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:02:46,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:02:46,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:02:46,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:02:46,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:02:46,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:02:46,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:02:46,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:02:46,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:02:46,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:02:46,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:02:46,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:02:46,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:02:46,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:02:46,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:02:46,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:02:46,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:02:46,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:02:46,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:02:46,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:02:46,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:02:46,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:02:46,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:02:46,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:02:46,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:02:46,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:02:46,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:02:46,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:02:46,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:02:46,516 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:02:46,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:02:46,516 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:02:46,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:02:46,518 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:02:46,518 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:02:46,518 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:02:46,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:02:46,519 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:02:46,519 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:02:46,519 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:02:46,519 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:02:46,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:02:46,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:02:46,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:02:46,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:02:46,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:02:46,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:02:46,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:02:46,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:02:46,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:02:46,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:02:46,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:02:46,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:02:46,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:02:46,525 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:02:46,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:02:46,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:02:46,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:02:46,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:02:46,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:02:46,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:02:46,526 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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 [2022-11-03 02:02:46,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:02:46,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:02:46,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:02:46,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:02:46,886 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:02:46,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-03 02:02:47,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/data/8146a6e63/1de9c2d2ec654ec6aa0fb06d39d58ac9/FLAGb67eea36e [2022-11-03 02:02:48,328 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:02:48,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-03 02:02:48,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/data/8146a6e63/1de9c2d2ec654ec6aa0fb06d39d58ac9/FLAGb67eea36e [2022-11-03 02:02:48,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/data/8146a6e63/1de9c2d2ec654ec6aa0fb06d39d58ac9 [2022-11-03 02:02:48,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:02:48,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:02:48,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:02:48,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:02:48,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:02:48,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:02:48" (1/1) ... [2022-11-03 02:02:48,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f741cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:48, skipping insertion in model container [2022-11-03 02:02:48,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:02:48" (1/1) ... [2022-11-03 02:02:48,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:02:48,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:02:54,675 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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2022-11-03 02:02:54,679 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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2022-11-03 02:02:54,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:02:54,831 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:02:55,368 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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2022-11-03 02:02:55,369 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_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2022-11-03 02:02:55,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:02:55,797 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:02:55,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55 WrapperNode [2022-11-03 02:02:55,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:02:55,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:02:55,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:02:55,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:02:55,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:55,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,392 INFO L138 Inliner]: procedures = 667, calls = 4451, calls flagged for inlining = 327, calls inlined = 292, statements flattened = 8509 [2022-11-03 02:02:56,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:02:56,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:02:56,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:02:56,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:02:56,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:56,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:02:56,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:02:56,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:02:56,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:02:56,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (1/1) ... [2022-11-03 02:02:57,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:02:57,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:57,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:02:57,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fe36c4-5a57-49e2-b1d0-d798ecbdf5f2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:02:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 02:02:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 02:02:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:02:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:02:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-03 02:02:57,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-03 02:02:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:02:57,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:02:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-11-03 02:02:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-11-03 02:02:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-11-03 02:02:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-11-03 02:02:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-03 02:02:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-03 02:02:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-11-03 02:02:57,147 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-11-03 02:02:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-11-03 02:02:57,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-11-03 02:02:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:02:57,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:02:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-11-03 02:02:57,148 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-11-03 02:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:02:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:02:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-11-03 02:02:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-11-03 02:02:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-11-03 02:02:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-11-03 02:02:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-11-03 02:02:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-11-03 02:02:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:02:57,151 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:02:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-11-03 02:02:57,151 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-11-03 02:02:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-11-03 02:02:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-11-03 02:02:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:02:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:02:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:02:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:02:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:02:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:02:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:02:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-11-03 02:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-11-03 02:02:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-11-03 02:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-11-03 02:02:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:02:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:02:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-11-03 02:02:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-11-03 02:02:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:02:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:02:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:02:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:02:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:02:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-11-03 02:02:57,157 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-11-03 02:02:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:02:57,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:02:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:02:57,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:02:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-11-03 02:02:57,158 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-11-03 02:02:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-03 02:02:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-11-03 02:02:57,159 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-11-03 02:02:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:02:57,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:02:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:02:57,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:02:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-03 02:02:57,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-03 02:02:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:02:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-11-03 02:02:57,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-11-03 02:02:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-11-03 02:02:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-11-03 02:02:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:02:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:02:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-11-03 02:02:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-11-03 02:02:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:02:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:02:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:02:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-11-03 02:02:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-11-03 02:02:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:02:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:02:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:02:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:02:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:02:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:02:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:02:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:02:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:02:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:02:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:02:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-11-03 02:02:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-11-03 02:02:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-11-03 02:02:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-11-03 02:02:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:02:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:02:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:02:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:02:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:02:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:02:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-11-03 02:02:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-11-03 02:02:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-11-03 02:02:57,168 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-11-03 02:02:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:02:57,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:02:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:02:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:02:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:02:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 02:02:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-03 02:02:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:02:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:02:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:02:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:02:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-11-03 02:02:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-11-03 02:02:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 02:02:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 02:02:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-11-03 02:02:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-11-03 02:02:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:02:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:02:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:02:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:02:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:02:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:02:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:02:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:02:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:02:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-11-03 02:02:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-11-03 02:02:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-11-03 02:02:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-11-03 02:02:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-11-03 02:02:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-11-03 02:02:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:02:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:02:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:02:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:02:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:02:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:02:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:02:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:02:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-11-03 02:02:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-11-03 02:02:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-11-03 02:02:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-11-03 02:02:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-11-03 02:02:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-11-03 02:02:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-11-03 02:02:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-11-03 02:02:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-11-03 02:02:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-11-03 02:02:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:02:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:02:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:02:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:02:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:02:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:02:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:02:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:02:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-11-03 02:02:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-11-03 02:02:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:02:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:02:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-03 02:02:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-03 02:02:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-11-03 02:02:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-11-03 02:02:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:02:57,181 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:02:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-11-03 02:02:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-11-03 02:02:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:02:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:02:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 02:02:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 02:02:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-03 02:02:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-03 02:02:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:02:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:02:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:02:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:02:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 02:02:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 02:02:57,184 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 02:02:57,184 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 02:02:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:02:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:02:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:02:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:02:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:02:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-11-03 02:02:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-11-03 02:02:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 02:02:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 02:02:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:02:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:02:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-11-03 02:02:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-11-03 02:02:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:02:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:02:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-03 02:02:57,188 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-03 02:02:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-11-03 02:02:57,188 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-11-03 02:02:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:02:57,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:02:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-11-03 02:02:57,189 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-11-03 02:02:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-11-03 02:02:57,189 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-11-03 02:02:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-03 02:02:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-03 02:02:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:02:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:02:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 02:02:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 02:02:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-03 02:02:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-03 02:02:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 02:02:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 02:02:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:02:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:02:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:02:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:02:57,192 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:02:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-11-03 02:02:57,192 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-11-03 02:02:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-11-03 02:02:57,193 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-11-03 02:02:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:02:57,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:02:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-11-03 02:02:57,194 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-11-03 02:02:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:02:57,194 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:02:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:02:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_lock_of_alx_priv [2022-11-03 02:02:57,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_lock_of_alx_priv [2022-11-03 02:02:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_105 [2022-11-03 02:02:57,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_105 [2022-11-03 02:02:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:02:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-11-03 02:02:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-11-03 02:02:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:02:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:02:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 02:02:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 02:02:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-11-03 02:02:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-11-03 02:02:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:02:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:02:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:02:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:02:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:02:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:02:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:02:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:02:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:02:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:02:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:02:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:02:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2022-11-03 02:02:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2022-11-03 02:02:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:02:57,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:02:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-03 02:02:57,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-03 02:02:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-11-03 02:02:57,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-11-03 02:02:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:02:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:02:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:02:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:02:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-11-03 02:02:57,202 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-11-03 02:02:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:02:57,202 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:02:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-11-03 02:02:57,202 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-11-03 02:02:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:02:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:02:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-11-03 02:02:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-11-03 02:02:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:02:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:02:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:02:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-11-03 02:02:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-11-03 02:02:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-11-03 02:02:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-11-03 02:02:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:02:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:02:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-11-03 02:02:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-11-03 02:02:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-11-03 02:02:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-11-03 02:02:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-11-03 02:02:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-11-03 02:02:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:02:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:02:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-11-03 02:02:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-11-03 02:02:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:02:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:02:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 02:02:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 02:02:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-11-03 02:02:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-11-03 02:02:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-11-03 02:02:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-11-03 02:02:57,209 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-11-03 02:02:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-11-03 02:02:57,209 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-11-03 02:02:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-11-03 02:02:57,209 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-11-03 02:02:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-11-03 02:02:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:02:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:02:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 02:02:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 02:02:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:02:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:02:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:02:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-03 02:02:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-03 02:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-11-03 02:02:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-11-03 02:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-11-03 02:02:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-11-03 02:02:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:02:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:02:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:02:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:02:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 02:02:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 02:02:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:02:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:02:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-03 02:02:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-03 02:02:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:02:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:02:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:02:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-03 02:02:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-03 02:02:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-11-03 02:02:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-11-03 02:02:58,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:02:58,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:02:58,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:03:14,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:03:14,423 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:03:17,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:03:17,588 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-03 02:03:17,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:17 BoogieIcfgContainer [2022-11-03 02:03:17,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:03:17,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:03:17,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:03:17,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:03:17,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:02:48" (1/3) ... [2022-11-03 02:03:17,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230425b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:17, skipping insertion in model container [2022-11-03 02:03:17,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:02:55" (2/3) ... [2022-11-03 02:03:17,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230425b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:17, skipping insertion in model container [2022-11-03 02:03:17,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:17" (3/3) ... [2022-11-03 02:03:17,622 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-03 02:03:17,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:03:17,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:03:17,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:03:17,800 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;@49a9ac4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:03:17,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:03:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 2398 states, 1354 states have (on average 1.2636632200886262) internal successors, (1711), 1398 states have internal predecessors, (1711), 876 states have call successors, (876), 171 states have call predecessors, (876), 170 states have return successors, (867), 852 states have call predecessors, (867), 867 states have call successors, (867) [2022-11-03 02:03:17,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-03 02:03:17,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:17,865 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:17,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash -739471683, now seen corresponding path program 1 times [2022-11-03 02:03:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:17,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977317163] [2022-11-03 02:03:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-03 02:03:19,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977317163] [2022-11-03 02:03:19,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977317163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:19,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:19,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:19,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961536062] [2022-11-03 02:03:19,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:19,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:19,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:19,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:19,816 INFO L87 Difference]: Start difference. First operand has 2398 states, 1354 states have (on average 1.2636632200886262) internal successors, (1711), 1398 states have internal predecessors, (1711), 876 states have call successors, (876), 171 states have call predecessors, (876), 170 states have return successors, (867), 852 states have call predecessors, (867), 867 states have call successors, (867) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:03:25,905 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 02:03:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:26,356 INFO L93 Difference]: Finished difference Result 6710 states and 9734 transitions. [2022-11-03 02:03:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:26,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2022-11-03 02:03:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:26,412 INFO L225 Difference]: With dead ends: 6710 [2022-11-03 02:03:26,412 INFO L226 Difference]: Without dead ends: 4275 [2022-11-03 02:03:26,434 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 02:03:26,437 INFO L413 NwaCegarLoop]: 3688 mSDtfsCounter, 2815 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 6623 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:26,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2815 Valid, 6623 Invalid, 915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 895 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:03:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2022-11-03 02:03:26,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4272. [2022-11-03 02:03:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 2442 states have (on average 1.2502047502047502) internal successors, (3053), 2511 states have internal predecessors, (3053), 1511 states have call successors, (1511), 318 states have call predecessors, (1511), 318 states have return successors, (1511), 1490 states have call predecessors, (1511), 1511 states have call successors, (1511) [2022-11-03 02:03:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 6075 transitions. [2022-11-03 02:03:26,923 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 6075 transitions. Word has length 203 [2022-11-03 02:03:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:26,927 INFO L495 AbstractCegarLoop]: Abstraction has 4272 states and 6075 transitions. [2022-11-03 02:03:26,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:03:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 6075 transitions. [2022-11-03 02:03:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-03 02:03:26,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:26,948 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:26,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:03:26,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:26,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1354804334, now seen corresponding path program 1 times [2022-11-03 02:03:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:26,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115690047] [2022-11-03 02:03:26,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:26,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-03 02:03:28,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:28,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115690047] [2022-11-03 02:03:28,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115690047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:28,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:28,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:28,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160710876] [2022-11-03 02:03:28,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:28,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:28,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:28,023 INFO L87 Difference]: Start difference. First operand 4272 states and 6075 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:03:30,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:35,435 WARN L539 Checker$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 02:03:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:35,946 INFO L93 Difference]: Finished difference Result 12130 states and 17217 transitions. [2022-11-03 02:03:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:35,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 204 [2022-11-03 02:03:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:36,002 INFO L225 Difference]: With dead ends: 12130 [2022-11-03 02:03:36,003 INFO L226 Difference]: Without dead ends: 7891 [2022-11-03 02:03:36,026 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 02:03:36,027 INFO L413 NwaCegarLoop]: 4457 mSDtfsCounter, 2833 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:36,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 7306 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1027 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 02:03:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7891 states. [2022-11-03 02:03:36,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7891 to 7882. [2022-11-03 02:03:36,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7882 states, 4481 states have (on average 1.2374469984378487) internal successors, (5545), 4614 states have internal predecessors, (5545), 2791 states have call successors, (2791), 609 states have call predecessors, (2791), 609 states have return successors, (2791), 2748 states have call predecessors, (2791), 2791 states have call successors, (2791) [2022-11-03 02:03:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7882 states to 7882 states and 11127 transitions. [2022-11-03 02:03:36,592 INFO L78 Accepts]: Start accepts. Automaton has 7882 states and 11127 transitions. Word has length 204 [2022-11-03 02:03:36,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:36,593 INFO L495 AbstractCegarLoop]: Abstraction has 7882 states and 11127 transitions. [2022-11-03 02:03:36,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:03:36,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7882 states and 11127 transitions. [2022-11-03 02:03:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-03 02:03:36,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:36,604 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:03:36,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:03:36,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:36,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash -424393102, now seen corresponding path program 1 times [2022-11-03 02:03:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:36,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115090051] [2022-11-03 02:03:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:36,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-03 02:03:37,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:37,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115090051] [2022-11-03 02:03:37,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115090051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:37,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:37,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:37,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494311404] [2022-11-03 02:03:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:37,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:37,210 INFO L87 Difference]: Start difference. First operand 7882 states and 11127 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:03:39,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:44,610 WARN L539 Checker$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 02:03:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:45,306 INFO L93 Difference]: Finished difference Result 22914 states and 32334 transitions. [2022-11-03 02:03:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:45,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 228 [2022-11-03 02:03:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:45,447 INFO L225 Difference]: With dead ends: 22914 [2022-11-03 02:03:45,448 INFO L226 Difference]: Without dead ends: 15065 [2022-11-03 02:03:45,502 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 02:03:45,504 INFO L413 NwaCegarLoop]: 4615 mSDtfsCounter, 2956 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:45,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 7498 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1025 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-11-03 02:03:45,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15065 states. [2022-11-03 02:03:46,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15065 to 15052. [2022-11-03 02:03:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15052 states, 8562 states have (on average 1.2347582340574632) internal successors, (10572), 8830 states have internal predecessors, (10572), 5316 states have call successors, (5316), 1173 states have call predecessors, (5316), 1173 states have return successors, (5316), 5225 states have call predecessors, (5316), 5316 states have call successors, (5316) [2022-11-03 02:03:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15052 states to 15052 states and 21204 transitions. [2022-11-03 02:03:46,892 INFO L78 Accepts]: Start accepts. Automaton has 15052 states and 21204 transitions. Word has length 228 [2022-11-03 02:03:46,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:46,895 INFO L495 AbstractCegarLoop]: Abstraction has 15052 states and 21204 transitions. [2022-11-03 02:03:46,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:03:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand 15052 states and 21204 transitions. [2022-11-03 02:03:46,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-03 02:03:46,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:46,916 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:03:46,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:03:46,917 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:46,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:46,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1838116152, now seen corresponding path program 1 times [2022-11-03 02:03:46,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:46,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235757974] [2022-11-03 02:03:46,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:46,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2022-11-03 02:03:47,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:47,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235757974] [2022-11-03 02:03:47,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235757974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:47,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:47,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:47,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303784570] [2022-11-03 02:03:47,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:47,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:47,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:47,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:47,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:47,504 INFO L87 Difference]: Start difference. First operand 15052 states and 21204 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:03:54,242 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 02:03:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:54,788 INFO L93 Difference]: Finished difference Result 36662 states and 51541 transitions. [2022-11-03 02:03:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:03:54,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 243 [2022-11-03 02:03:54,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:55,089 INFO L225 Difference]: With dead ends: 36662 [2022-11-03 02:03:55,089 INFO L226 Difference]: Without dead ends: 21643 [2022-11-03 02:03:55,162 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 02:03:55,168 INFO L413 NwaCegarLoop]: 3586 mSDtfsCounter, 2729 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:55,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 6464 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 852 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:03:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2022-11-03 02:03:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 21641. [2022-11-03 02:03:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21641 states, 12336 states have (on average 1.2311121919584955) internal successors, (15187), 12709 states have internal predecessors, (15187), 7591 states have call successors, (7591), 1713 states have call predecessors, (7591), 1713 states have return successors, (7591), 7470 states have call predecessors, (7591), 7591 states have call successors, (7591) [2022-11-03 02:03:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21641 states to 21641 states and 30369 transitions. [2022-11-03 02:03:56,836 INFO L78 Accepts]: Start accepts. Automaton has 21641 states and 30369 transitions. Word has length 243 [2022-11-03 02:03:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:56,837 INFO L495 AbstractCegarLoop]: Abstraction has 21641 states and 30369 transitions. [2022-11-03 02:03:56,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:03:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 21641 states and 30369 transitions. [2022-11-03 02:03:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-03 02:03:56,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:56,859 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:03:56,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:03:56,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash 949656347, now seen corresponding path program 1 times [2022-11-03 02:03:56,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:56,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654273414] [2022-11-03 02:03:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2022-11-03 02:03:57,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:57,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654273414] [2022-11-03 02:03:57,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654273414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:57,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:03:57,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:03:57,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465681739] [2022-11-03 02:03:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:57,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:03:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:03:57,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:03:57,490 INFO L87 Difference]: Start difference. First operand 21641 states and 30369 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:04:00,933 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 02:04:02,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:04,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:06,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:06,032 INFO L93 Difference]: Finished difference Result 47642 states and 66571 transitions. [2022-11-03 02:04:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:06,033 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 243 [2022-11-03 02:04:06,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:06,194 INFO L225 Difference]: With dead ends: 47642 [2022-11-03 02:04:06,195 INFO L226 Difference]: Without dead ends: 26034 [2022-11-03 02:04:06,269 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 02:04:06,270 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2380 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:06,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2380 Valid, 6348 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 889 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-03 02:04:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26034 states. [2022-11-03 02:04:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26034 to 26025. [2022-11-03 02:04:07,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26025 states, 14812 states have (on average 1.2279233054280314) internal successors, (18188), 15293 states have internal predecessors, (18188), 9001 states have call successors, (9001), 2217 states have call predecessors, (9001), 2211 states have return successors, (9009), 8816 states have call predecessors, (9009), 9001 states have call successors, (9009) [2022-11-03 02:04:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26025 states to 26025 states and 36198 transitions. [2022-11-03 02:04:08,118 INFO L78 Accepts]: Start accepts. Automaton has 26025 states and 36198 transitions. Word has length 243 [2022-11-03 02:04:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:08,122 INFO L495 AbstractCegarLoop]: Abstraction has 26025 states and 36198 transitions. [2022-11-03 02:04:08,122 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:04:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 26025 states and 36198 transitions. [2022-11-03 02:04:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-03 02:04:08,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:08,133 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:04:08,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:04:08,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1270256167, now seen corresponding path program 1 times [2022-11-03 02:04:08,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:08,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342583591] [2022-11-03 02:04:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:08,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-11-03 02:04:09,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342583591] [2022-11-03 02:04:09,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342583591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:09,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:09,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:04:09,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742751435] [2022-11-03 02:04:09,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:09,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:04:09,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:09,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:04:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:09,069 INFO L87 Difference]: Start difference. First operand 26025 states and 36198 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:04:13,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:16,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:18,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:19,885 INFO L93 Difference]: Finished difference Result 62775 states and 87353 transitions. [2022-11-03 02:04:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 250 [2022-11-03 02:04:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:20,110 INFO L225 Difference]: With dead ends: 62775 [2022-11-03 02:04:20,111 INFO L226 Difference]: Without dead ends: 36980 [2022-11-03 02:04:20,213 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 02:04:20,214 INFO L413 NwaCegarLoop]: 4179 mSDtfsCounter, 2740 mSDsluCounter, 3260 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:20,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2740 Valid, 7040 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1027 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-03 02:04:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36980 states. [2022-11-03 02:04:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36980 to 36970. [2022-11-03 02:04:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36970 states, 21077 states have (on average 1.2256013664183707) internal successors, (25832), 21748 states have internal predecessors, (25832), 12734 states have call successors, (12734), 3166 states have call predecessors, (12734), 3158 states have return successors, (12744), 12476 states have call predecessors, (12744), 12734 states have call successors, (12744) [2022-11-03 02:04:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36970 states to 36970 states and 51310 transitions. [2022-11-03 02:04:23,053 INFO L78 Accepts]: Start accepts. Automaton has 36970 states and 51310 transitions. Word has length 250 [2022-11-03 02:04:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:23,065 INFO L495 AbstractCegarLoop]: Abstraction has 36970 states and 51310 transitions. [2022-11-03 02:04:23,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:04:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 36970 states and 51310 transitions. [2022-11-03 02:04:23,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-03 02:04:23,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:23,082 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 5, 5, 4, 4, 4, 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] [2022-11-03 02:04:23,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:04:23,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:23,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:23,083 INFO L85 PathProgramCache]: Analyzing trace with hash -966023022, now seen corresponding path program 1 times [2022-11-03 02:04:23,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:23,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846955147] [2022-11-03 02:04:23,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:23,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2022-11-03 02:04:23,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:23,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846955147] [2022-11-03 02:04:23,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846955147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:23,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:23,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:04:23,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837999317] [2022-11-03 02:04:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:23,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:04:23,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:23,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:04:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:23,686 INFO L87 Difference]: Start difference. First operand 36970 states and 51310 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:04:28,841 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 02:04:30,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:32,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:34,993 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 02:04:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:36,525 INFO L93 Difference]: Finished difference Result 90530 states and 125765 transitions. [2022-11-03 02:04:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:36,526 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 282 [2022-11-03 02:04:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:36,903 INFO L225 Difference]: With dead ends: 90530 [2022-11-03 02:04:36,904 INFO L226 Difference]: Without dead ends: 53790 [2022-11-03 02:04:37,044 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 02:04:37,046 INFO L413 NwaCegarLoop]: 5492 mSDtfsCounter, 2961 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 8373 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:37,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2961 Valid, 8373 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1244 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 02:04:37,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53790 states. [2022-11-03 02:04:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53790 to 53760. [2022-11-03 02:04:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53760 states, 30666 states have (on average 1.2254288136698623) internal successors, (37579), 31663 states have internal predecessors, (37579), 18504 states have call successors, (18504), 4601 states have call predecessors, (18504), 4589 states have return successors, (18519), 18114 states have call predecessors, (18519), 18504 states have call successors, (18519) [2022-11-03 02:04:39,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53760 states to 53760 states and 74602 transitions. [2022-11-03 02:04:39,970 INFO L78 Accepts]: Start accepts. Automaton has 53760 states and 74602 transitions. Word has length 282 [2022-11-03 02:04:39,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:39,973 INFO L495 AbstractCegarLoop]: Abstraction has 53760 states and 74602 transitions. [2022-11-03 02:04:39,973 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:04:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 53760 states and 74602 transitions. [2022-11-03 02:04:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-03 02:04:39,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:39,992 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:39,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:04:39,992 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:39,993 INFO L85 PathProgramCache]: Analyzing trace with hash -743362622, now seen corresponding path program 1 times [2022-11-03 02:04:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:39,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030625832] [2022-11-03 02:04:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1293 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2022-11-03 02:04:41,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:41,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030625832] [2022-11-03 02:04:41,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030625832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:41,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:41,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:41,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110098565] [2022-11-03 02:04:41,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:41,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:41,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:41,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:41,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:41,702 INFO L87 Difference]: Start difference. First operand 53760 states and 74602 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 02:04:45,962 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 02:04:48,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:50,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:53,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:53,539 INFO L93 Difference]: Finished difference Result 109138 states and 152169 transitions. [2022-11-03 02:04:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 313 [2022-11-03 02:04:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:53,940 INFO L225 Difference]: With dead ends: 109138 [2022-11-03 02:04:53,940 INFO L226 Difference]: Without dead ends: 55608 [2022-11-03 02:04:54,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:04:54,214 INFO L413 NwaCegarLoop]: 2929 mSDtfsCounter, 99 mSDsluCounter, 6638 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 8735 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:54,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 8735 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1260 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-03 02:04:54,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55608 states. [2022-11-03 02:04:57,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55608 to 55608. [2022-11-03 02:04:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55608 states, 31786 states have (on average 1.226294595104763) internal successors, (38979), 32783 states have internal predecessors, (38979), 19204 states have call successors, (19204), 4629 states have call predecessors, (19204), 4617 states have return successors, (19219), 18814 states have call predecessors, (19219), 19204 states have call successors, (19219) [2022-11-03 02:04:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55608 states to 55608 states and 77402 transitions. [2022-11-03 02:04:57,844 INFO L78 Accepts]: Start accepts. Automaton has 55608 states and 77402 transitions. Word has length 313 [2022-11-03 02:04:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:57,845 INFO L495 AbstractCegarLoop]: Abstraction has 55608 states and 77402 transitions. [2022-11-03 02:04:57,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-03 02:04:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 55608 states and 77402 transitions. [2022-11-03 02:04:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-03 02:04:57,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:57,879 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:57,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:04:57,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:57,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash -914959572, now seen corresponding path program 1 times [2022-11-03 02:04:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:57,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470473686] [2022-11-03 02:04:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:57,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1293 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2022-11-03 02:05:07,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470473686] [2022-11-03 02:05:07,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470473686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:07,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:07,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:05:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464969615] [2022-11-03 02:05:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:05:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:05:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:05:07,126 INFO L87 Difference]: Start difference. First operand 55608 states and 77402 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-03 02:05:18,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:20,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:22,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:25,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []