./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:37:43,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:37:43,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:37:43,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:37:43,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:37:43,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:37:43,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:37:43,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:37:43,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:37:43,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:37:43,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:37:43,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:37:43,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:37:43,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:37:43,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:37:43,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:37:43,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:37:43,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:37:43,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:37:43,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:37:43,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:37:43,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:37:43,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:37:43,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:37:43,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:37:43,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:37:43,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:37:43,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:37:43,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:37:43,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:37:43,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:37:43,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:37:43,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:37:43,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:37:43,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:37:43,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:37:43,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:37:43,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:37:43,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:37:43,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:37:43,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:37:43,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:37:43,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:37:43,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:37:43,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:37:43,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:37:43,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:37:43,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:37:43,516 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:37:43,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:37:43,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:37:43,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:37:43,517 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:37:43,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:37:43,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:37:43,517 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:37:43,517 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:37:43,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:37:43,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:37:43,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:37:43,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:37:43,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:37:43,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:37:43,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:37:43,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:37:43,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:37:43,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:37:43,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:37:43,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:37:43,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:37:43,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:37:43,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:37:43,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:37:43,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:37:43,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:37:43,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:37:43,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:37:43,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:37:43,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:37:43,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:37:43,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2021-11-25 20:37:43,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:37:43,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:37:43,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:37:43,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:37:43,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:37:43,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 20:37:43,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/data/fa7b3352f/f68f5131f3484fe6a27842337a717963/FLAG4830a90b0 [2021-11-25 20:37:44,986 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:37:44,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 20:37:45,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/data/fa7b3352f/f68f5131f3484fe6a27842337a717963/FLAG4830a90b0 [2021-11-25 20:37:45,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/data/fa7b3352f/f68f5131f3484fe6a27842337a717963 [2021-11-25 20:37:45,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:37:45,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:37:45,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:37:45,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:37:45,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:37:45,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:45" (1/1) ... [2021-11-25 20:37:45,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1670968f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:45, skipping insertion in model container [2021-11-25 20:37:45,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:45" (1/1) ... [2021-11-25 20:37:45,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:37:45,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:37:50,367 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_a34c04bf-8f7d-458f-9f83-3cc084c9b700/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-25 20:37:50,371 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_a34c04bf-8f7d-458f-9f83-3cc084c9b700/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-25 20:37:50,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:37:50,469 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:37:51,135 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_a34c04bf-8f7d-458f-9f83-3cc084c9b700/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-25 20:37:51,135 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_a34c04bf-8f7d-458f-9f83-3cc084c9b700/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-25 20:37:51,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:37:51,398 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:37:51,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51 WrapperNode [2021-11-25 20:37:51,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:37:51,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:37:51,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:37:51,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:37:51,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:51,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:51,894 INFO L137 Inliner]: procedures = 543, calls = 4199, calls flagged for inlining = 248, calls inlined = 232, statements flattened = 8662 [2021-11-25 20:37:51,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:37:51,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:37:51,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:37:51,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:37:51,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:51,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:51,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:51,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:52,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:52,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:52,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:52,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:37:52,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:37:52,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:37:52,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:37:52,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (1/1) ... [2021-11-25 20:37:52,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:37:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:52,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:37:52,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34c04bf-8f7d-458f-9f83-3cc084c9b700/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:37:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-25 20:37:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-25 20:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2021-11-25 20:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2021-11-25 20:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 20:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 20:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:37:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-25 20:37:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-25 20:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-25 20:37:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-25 20:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 20:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 20:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-25 20:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-25 20:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-25 20:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-25 20:37:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-25 20:37:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-25 20:37:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-25 20:37:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-25 20:37:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:37:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:37:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-25 20:37:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-25 20:37:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:37:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:37:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-25 20:37:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-25 20:37:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-25 20:37:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-25 20:37:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-25 20:37:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-25 20:37:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-25 20:37:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-25 20:37:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-25 20:37:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-25 20:37:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-25 20:37:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-25 20:37:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:37:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:37:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-25 20:37:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-25 20:37:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-25 20:37:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-25 20:37:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:37:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:37:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:37:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:37:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-25 20:37:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-25 20:37:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-25 20:37:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:37:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-25 20:37:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-25 20:37:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 20:37:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 20:37:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-25 20:37:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-25 20:37:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-25 20:37:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-25 20:37:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:37:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:37:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:37:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 20:37:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 20:37:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-25 20:37:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-25 20:37:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-25 20:37:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-25 20:37:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:37:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:37:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:37:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:37:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:37:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:37:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:37:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:37:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:37:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:37:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:37:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:37:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:37:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:37:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:37:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:37:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:37:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:37:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-25 20:37:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-25 20:37:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:37:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:37:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:37:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:37:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-25 20:37:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-25 20:37:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:37:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:37:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 20:37:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 20:37:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-25 20:37:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-25 20:37:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-25 20:37:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-25 20:37:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-25 20:37:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-25 20:37:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:37:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:37:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:37:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:37:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:37:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-25 20:37:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-25 20:37:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:37:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-25 20:37:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-25 20:37:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:37:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:37:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:37:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:37:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:37:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:37:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:37:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-25 20:37:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-25 20:37:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 20:37:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 20:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:37:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:37:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:37:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-25 20:37:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-25 20:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-25 20:37:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-25 20:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-25 20:37:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-25 20:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 20:37:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 20:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-25 20:37:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-25 20:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:37:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-25 20:37:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-25 20:37:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:37:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:37:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 20:37:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 20:37:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-25 20:37:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-25 20:37:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-25 20:37:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-25 20:37:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:37:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:37:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-25 20:37:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-25 20:37:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-25 20:37:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-25 20:37:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-25 20:37:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-25 20:37:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:37:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:37:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:37:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:37:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-25 20:37:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-25 20:37:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:37:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:37:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-25 20:37:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-25 20:37:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-25 20:37:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-25 20:37:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:37:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:37:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-25 20:37:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-25 20:37:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-25 20:37:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-25 20:37:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-25 20:37:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-25 20:37:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-25 20:37:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-25 20:37:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-25 20:37:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-25 20:37:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:37:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:37:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-25 20:37:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-25 20:37:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:37:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:37:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-25 20:37:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-25 20:37:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 20:37:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 20:37:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-25 20:37:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-25 20:37:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-25 20:37:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-25 20:37:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 20:37:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 20:37:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-25 20:37:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-25 20:37:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:37:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-25 20:37:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-25 20:37:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-25 20:37:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-25 20:37:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-25 20:37:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-25 20:37:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-25 20:37:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-25 20:37:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:37:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-25 20:37:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-25 20:37:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-25 20:37:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-25 20:37:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-25 20:37:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-25 20:37:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:37:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 20:37:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 20:37:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-25 20:37:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-25 20:37:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:37:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:37:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-25 20:37:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-25 20:37:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-25 20:37:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-25 20:37:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-25 20:37:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-25 20:37:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:37:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:37:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-25 20:37:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-25 20:37:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:37:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:37:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-25 20:37:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-25 20:37:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:37:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:37:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-25 20:37:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-25 20:37:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-25 20:37:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-25 20:37:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-25 20:37:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-25 20:37:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-25 20:37:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-25 20:37:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-25 20:37:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-25 20:37:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 20:37:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 20:37:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 20:37:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 20:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-25 20:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-25 20:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 20:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 20:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-25 20:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-25 20:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-25 20:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-25 20:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-25 20:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-25 20:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-25 20:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-25 20:37:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 20:37:52,766 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 20:37:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-25 20:37:52,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-25 20:37:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-25 20:37:52,766 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-25 20:37:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-25 20:37:52,766 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-25 20:37:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-25 20:37:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-25 20:37:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-25 20:37:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-25 20:37:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:37:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:37:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-25 20:37:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-25 20:37:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-25 20:37:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-25 20:37:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-25 20:37:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-25 20:37:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-25 20:37:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-25 20:37:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-25 20:37:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-25 20:37:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-25 20:37:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-25 20:37:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 20:37:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 20:37:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-25 20:37:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-25 20:37:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-25 20:37:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-25 20:37:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-25 20:37:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-25 20:37:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-25 20:37:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-25 20:37:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-25 20:37:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-25 20:37:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-25 20:37:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-25 20:37:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:37:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:37:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:37:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 20:37:53,957 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:37:53,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:37:54,594 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:38:12,044 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:38:12,279 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:38:16,470 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:38:16,471 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-25 20:38:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:16 BoogieIcfgContainer [2021-11-25 20:38:16,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:38:16,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:38:16,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:38:16,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:38:16,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:37:45" (1/3) ... [2021-11-25 20:38:16,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fa1d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:16, skipping insertion in model container [2021-11-25 20:38:16,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:51" (2/3) ... [2021-11-25 20:38:16,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fa1d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:16, skipping insertion in model container [2021-11-25 20:38:16,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:16" (3/3) ... [2021-11-25 20:38:16,489 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-25 20:38:16,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:38:16,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:38:16,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:38:16,592 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:38:16,598 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:38:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) [2021-11-25 20:38:16,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-25 20:38:16,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:16,751 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:16,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1353830328, now seen corresponding path program 1 times [2021-11-25 20:38:16,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:16,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603164604] [2021-11-25 20:38:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:16,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2021-11-25 20:38:17,784 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:17,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603164604] [2021-11-25 20:38:17,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603164604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:17,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:17,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:17,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385144272] [2021-11-25 20:38:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:17,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:17,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:17,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:17,845 INFO L87 Difference]: Start difference. First operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:38:19,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:25,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:25,026 INFO L93 Difference]: Finished difference Result 8398 states and 12822 transitions. [2021-11-25 20:38:25,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2021-11-25 20:38:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:25,104 INFO L225 Difference]: With dead ends: 8398 [2021-11-25 20:38:25,104 INFO L226 Difference]: Without dead ends: 5331 [2021-11-25 20:38:25,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:25,151 INFO L933 BasicCegarLoop]: 4743 mSDtfsCounter, 3541 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 8624 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:25,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3541 Valid, 8624 Invalid, 1149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1131 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 20:38:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-11-25 20:38:25,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5328. [2021-11-25 20:38:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3330 states have (on average 1.3396396396396397) internal successors, (4461), 3409 states have internal predecessors, (4461), 1720 states have call successors, (1720), 277 states have call predecessors, (1720), 277 states have return successors, (1720), 1694 states have call predecessors, (1720), 1720 states have call successors, (1720) [2021-11-25 20:38:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7901 transitions. [2021-11-25 20:38:25,713 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7901 transitions. Word has length 199 [2021-11-25 20:38:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:25,715 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 7901 transitions. [2021-11-25 20:38:25,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:38:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7901 transitions. [2021-11-25 20:38:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-25 20:38:25,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:25,746 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:25,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:38:25,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash 474535166, now seen corresponding path program 1 times [2021-11-25 20:38:25,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:25,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402446180] [2021-11-25 20:38:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:25,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-25 20:38:26,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:26,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402446180] [2021-11-25 20:38:26,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402446180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:26,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:26,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:26,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676280814] [2021-11-25 20:38:26,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:26,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:26,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:26,097 INFO L87 Difference]: Start difference. First operand 5328 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 20:38:28,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:34,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:34,238 INFO L93 Difference]: Finished difference Result 15652 states and 23509 transitions. [2021-11-25 20:38:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 227 [2021-11-25 20:38:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:34,368 INFO L225 Difference]: With dead ends: 15652 [2021-11-25 20:38:34,368 INFO L226 Difference]: Without dead ends: 10355 [2021-11-25 20:38:34,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:34,429 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4242 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 8777 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:34,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4242 Valid, 8777 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 20:38:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-25 20:38:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10349. [2021-11-25 20:38:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6464 states have (on average 1.3405012376237624) internal successors, (8665), 6627 states have internal predecessors, (8665), 3335 states have call successors, (3335), 552 states have call predecessors, (3335), 549 states have return successors, (3643), 3275 states have call predecessors, (3643), 3335 states have call successors, (3643) [2021-11-25 20:38:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15643 transitions. [2021-11-25 20:38:35,254 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15643 transitions. Word has length 227 [2021-11-25 20:38:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:35,257 INFO L470 AbstractCegarLoop]: Abstraction has 10349 states and 15643 transitions. [2021-11-25 20:38:35,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 20:38:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15643 transitions. [2021-11-25 20:38:35,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-25 20:38:35,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:35,285 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:35,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:38:35,285 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:35,286 INFO L85 PathProgramCache]: Analyzing trace with hash 420386674, now seen corresponding path program 1 times [2021-11-25 20:38:35,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:35,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921043844] [2021-11-25 20:38:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:35,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-25 20:38:35,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:35,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921043844] [2021-11-25 20:38:35,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921043844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:35,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:35,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:35,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532453316] [2021-11-25 20:38:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:35,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:35,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:35,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:35,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:35,670 INFO L87 Difference]: Start difference. First operand 10349 states and 15643 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:38:37,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:43,186 INFO L93 Difference]: Finished difference Result 30877 states and 46663 transitions. [2021-11-25 20:38:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:43,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 231 [2021-11-25 20:38:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:43,400 INFO L225 Difference]: With dead ends: 30877 [2021-11-25 20:38:43,400 INFO L226 Difference]: Without dead ends: 20559 [2021-11-25 20:38:43,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:43,489 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4297 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:43,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4297 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 20:38:43,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2021-11-25 20:38:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20557. [2021-11-25 20:38:44,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20557 states, 12843 states have (on average 1.3390173635443432) internal successors, (17197), 13169 states have internal predecessors, (17197), 6615 states have call successors, (6615), 1104 states have call predecessors, (6615), 1098 states have return successors, (7233), 6495 states have call predecessors, (7233), 6615 states have call successors, (7233) [2021-11-25 20:38:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 31045 transitions. [2021-11-25 20:38:45,084 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 31045 transitions. Word has length 231 [2021-11-25 20:38:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:45,086 INFO L470 AbstractCegarLoop]: Abstraction has 20557 states and 31045 transitions. [2021-11-25 20:38:45,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:38:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 31045 transitions. [2021-11-25 20:38:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-25 20:38:45,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:45,112 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:45,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:38:45,112 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1433819076, now seen corresponding path program 1 times [2021-11-25 20:38:45,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:45,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755711910] [2021-11-25 20:38:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:45,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-25 20:38:45,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:45,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755711910] [2021-11-25 20:38:45,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755711910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:45,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:45,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:38:45,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052782822] [2021-11-25 20:38:45,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:45,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:38:45,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:38:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:45,403 INFO L87 Difference]: Start difference. First operand 20557 states and 31045 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:38:47,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:52,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:52,549 INFO L93 Difference]: Finished difference Result 61393 states and 92695 transitions. [2021-11-25 20:38:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:38:52,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 232 [2021-11-25 20:38:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:52,854 INFO L225 Difference]: With dead ends: 61393 [2021-11-25 20:38:52,854 INFO L226 Difference]: Without dead ends: 40867 [2021-11-25 20:38:53,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:38:53,021 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4296 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:53,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4296 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 20:38:53,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2021-11-25 20:38:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 40865. [2021-11-25 20:38:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40865 states, 25533 states have (on average 1.337288998550895) internal successors, (34145), 26185 states have internal predecessors, (34145), 13135 states have call successors, (13135), 2208 states have call predecessors, (13135), 2196 states have return successors, (14375), 12895 states have call predecessors, (14375), 13135 states have call successors, (14375) [2021-11-25 20:38:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40865 states to 40865 states and 61655 transitions. [2021-11-25 20:38:56,321 INFO L78 Accepts]: Start accepts. Automaton has 40865 states and 61655 transitions. Word has length 232 [2021-11-25 20:38:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:56,321 INFO L470 AbstractCegarLoop]: Abstraction has 40865 states and 61655 transitions. [2021-11-25 20:38:56,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:38:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 40865 states and 61655 transitions. [2021-11-25 20:38:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-25 20:38:56,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:56,344 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:56,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:38:56,344 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:56,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1156625612, now seen corresponding path program 1 times [2021-11-25 20:38:56,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:56,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361669739] [2021-11-25 20:38:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:56,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-25 20:38:56,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:56,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361669739] [2021-11-25 20:38:56,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361669739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:56,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:56,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:38:56,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223527328] [2021-11-25 20:38:56,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:56,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:38:56,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:56,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:38:56,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:38:56,840 INFO L87 Difference]: Start difference. First operand 40865 states and 61655 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:38:58,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:14,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:19,601 INFO L93 Difference]: Finished difference Result 156087 states and 235158 transitions. [2021-11-25 20:39:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:39:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2021-11-25 20:39:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:20,486 INFO L225 Difference]: With dead ends: 156087 [2021-11-25 20:39:20,487 INFO L226 Difference]: Without dead ends: 115253 [2021-11-25 20:39:20,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:39:20,705 INFO L933 BasicCegarLoop]: 5539 mSDtfsCounter, 10719 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 6885 mSolverCounterSat, 2078 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10899 SdHoareTripleChecker+Valid, 13195 SdHoareTripleChecker+Invalid, 8964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 6885 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:20,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10899 Valid, 13195 Invalid, 8964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2078 Valid, 6885 Invalid, 1 Unknown, 0 Unchecked, 19.2s Time] [2021-11-25 20:39:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115253 states. [2021-11-25 20:39:26,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115253 to 115161. [2021-11-25 20:39:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115161 states, 71961 states have (on average 1.3356818276566473) internal successors, (96117), 73821 states have internal predecessors, (96117), 36887 states have call successors, (36887), 6346 states have call predecessors, (36887), 6312 states have return successors, (40343), 36205 states have call predecessors, (40343), 36887 states have call successors, (40343) [2021-11-25 20:39:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115161 states to 115161 states and 173347 transitions. [2021-11-25 20:39:28,714 INFO L78 Accepts]: Start accepts. Automaton has 115161 states and 173347 transitions. Word has length 233 [2021-11-25 20:39:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:28,715 INFO L470 AbstractCegarLoop]: Abstraction has 115161 states and 173347 transitions. [2021-11-25 20:39:28,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:39:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 115161 states and 173347 transitions. [2021-11-25 20:39:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-25 20:39:28,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:28,729 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:28,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:39:28,729 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:39:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash -687134285, now seen corresponding path program 1 times [2021-11-25 20:39:28,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:28,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126543627] [2021-11-25 20:39:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:28,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:39:28,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:28,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126543627] [2021-11-25 20:39:28,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126543627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:28,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:28,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:39:28,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973201691] [2021-11-25 20:39:28,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:28,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:39:28,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:28,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:39:28,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:39:28,986 INFO L87 Difference]: Start difference. First operand 115161 states and 173347 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:39:31,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:41,553 INFO L93 Difference]: Finished difference Result 278241 states and 418715 transitions. [2021-11-25 20:39:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:39:41,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 242 [2021-11-25 20:39:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:43,203 INFO L225 Difference]: With dead ends: 278241 [2021-11-25 20:39:43,203 INFO L226 Difference]: Without dead ends: 163111 [2021-11-25 20:39:43,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:39:43,847 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 3500 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 10752 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:43,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3500 Valid, 10752 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1538 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 20:39:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163111 states.