./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/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 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:59:44,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:59:44,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:59:44,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:59:44,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:59:44,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:59:44,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:59:44,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:59:44,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:59:44,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:59:44,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:59:44,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:59:44,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:59:44,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:59:44,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:59:44,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:59:44,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:59:44,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:59:44,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:59:44,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:59:44,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:59:44,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:59:44,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:59:44,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:59:44,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:59:44,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:59:44,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:59:44,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:59:44,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:59:44,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:59:44,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:59:44,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:59:44,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:59:44,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:59:44,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:59:44,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:59:44,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:59:44,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:59:44,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:59:44,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:59:44,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:59:44,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:59:44,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:59:44,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:59:44,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:59:44,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:59:44,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:59:44,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:59:44,436 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:59:44,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:59:44,436 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:59:44,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:59:44,436 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:59:44,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:59:44,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:59:44,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:59:44,437 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:59:44,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:59:44,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:59:44,438 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:59:44,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:59:44,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:59:44,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:59:44,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:59:44,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:59:44,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:59:44,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:59:44,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:59:44,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:59:44,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:59:44,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:59:44,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:44,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:59:44,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:59:44,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:59:44,441 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:59:44,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:59:44,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:59:44,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:59:44,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:59:44,442 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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2021-11-25 18:59:44,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:59:44,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:59:44,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:59:44,706 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:59:44,706 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:59:44,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-25 18:59:44,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/data/8d16d68b0/5f978c69f094465f96efa006d60faf66/FLAG3a326a338 [2021-11-25 18:59:45,750 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:59:45,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-25 18:59:45,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/data/8d16d68b0/5f978c69f094465f96efa006d60faf66/FLAG3a326a338 [2021-11-25 18:59:46,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/data/8d16d68b0/5f978c69f094465f96efa006d60faf66 [2021-11-25 18:59:46,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:59:46,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:59:46,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:46,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:59:46,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:59:46,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:46" (1/1) ... [2021-11-25 18:59:46,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c391ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:46, skipping insertion in model container [2021-11-25 18:59:46,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:59:46" (1/1) ... [2021-11-25 18:59:46,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:59:46,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:59:50,373 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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-25 18:59:50,376 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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-25 18:59:50,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:50,482 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:59:50,999 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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-25 18:59:50,999 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_d721174b-8e34-4166-b1e4-1c0b3d99aa67/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-25 18:59:51,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:59:51,268 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:59:51,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51 WrapperNode [2021-11-25 18:59:51,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:59:51,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:51,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:59:51,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:59:51,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,713 INFO L137 Inliner]: procedures = 521, calls = 3820, calls flagged for inlining = 276, calls inlined = 261, statements flattened = 6818 [2021-11-25 18:59:51,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:59:51,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:59:51,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:59:51,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:59:51,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:51,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:52,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:52,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:59:52,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:59:52,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:59:52,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:59:52,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (1/1) ... [2021-11-25 18:59:52,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:59:52,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:59:52,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:59:52,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d721174b-8e34-4166-b1e4-1c0b3d99aa67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:59:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-25 18:59:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-25 18:59:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-25 18:59:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-25 18:59:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-25 18:59:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-25 18:59:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-25 18:59:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-25 18:59:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:59:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:59:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:59:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:59:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:59:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:59:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-25 18:59:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-25 18:59:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-25 18:59:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-25 18:59:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:59:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:59:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 18:59:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 18:59:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:59:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:59:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-25 18:59:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-25 18:59:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-25 18:59:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-25 18:59:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-25 18:59:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-25 18:59:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:59:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:59:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-25 18:59:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-25 18:59:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-25 18:59:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-25 18:59:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-25 18:59:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-25 18:59:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:59:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:59:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 18:59:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 18:59:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-25 18:59:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-25 18:59:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:59:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-25 18:59:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-25 18:59:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-25 18:59:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-25 18:59:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-25 18:59:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-25 18:59:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:59:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-25 18:59:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-25 18:59:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2021-11-25 18:59:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2021-11-25 18:59:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:59:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:59:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:59:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:59:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-25 18:59:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-25 18:59:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:59:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:59:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:59:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-25 18:59:52,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-25 18:59:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:59:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:59:52,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:59:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-25 18:59:52,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-25 18:59:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:59:52,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:59:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:59:52,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:59:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:59:52,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:59:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:59:52,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:59:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:59:52,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:59:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-25 18:59:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-25 18:59:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-25 18:59:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-25 18:59:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-25 18:59:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-25 18:59:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 18:59:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 18:59:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:59:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:59:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-25 18:59:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-25 18:59:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-25 18:59:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-25 18:59:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-25 18:59:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-25 18:59:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-25 18:59:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-25 18:59:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:59:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:59:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:59:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:59:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:59:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:59:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 18:59:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 18:59:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-25 18:59:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-25 18:59:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-25 18:59:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-25 18:59:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:59:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:59:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:59:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:59:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:59:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:59:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:59:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:59:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:59:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:59:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:59:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-25 18:59:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-25 18:59:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:59:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:59:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-25 18:59:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-25 18:59:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-25 18:59:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-25 18:59:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:59:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:59:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-25 18:59:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-25 18:59:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-25 18:59:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-25 18:59:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-25 18:59:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-25 18:59:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-25 18:59:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-25 18:59:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-25 18:59:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-25 18:59:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 18:59:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 18:59:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:59:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:59:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 18:59:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 18:59:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-25 18:59:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-25 18:59:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:59:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:59:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:59:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:59:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-25 18:59:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-25 18:59:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-25 18:59:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-25 18:59:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-25 18:59:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-25 18:59:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-25 18:59:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-25 18:59:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-25 18:59:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-25 18:59:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 18:59:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 18:59:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:59:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:59:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 18:59:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 18:59:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-25 18:59:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-25 18:59:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:59:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:59:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 18:59:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 18:59:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-25 18:59:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-25 18:59:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:59:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-25 18:59:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-25 18:59:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:59:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:59:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 18:59:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 18:59:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:59:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:59:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-25 18:59:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-25 18:59:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-25 18:59:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-25 18:59:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-25 18:59:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-25 18:59:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 18:59:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 18:59:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-25 18:59:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-25 18:59:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-25 18:59:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-25 18:59:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:59:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-25 18:59:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-25 18:59:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 18:59:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 18:59:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:59:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:59:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-25 18:59:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-25 18:59:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-25 18:59:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-25 18:59:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-25 18:59:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-25 18:59:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-25 18:59:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-25 18:59:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 18:59:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 18:59:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-25 18:59:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-25 18:59:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:59:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:59:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-25 18:59:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-25 18:59:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 18:59:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 18:59:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-25 18:59:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-25 18:59:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-25 18:59:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-25 18:59:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 18:59:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:59:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:59:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:59:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-25 18:59:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-25 18:59:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:59:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:59:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-25 18:59:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-25 18:59:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-25 18:59:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-25 18:59:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-25 18:59:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-25 18:59:53,610 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:59:53,616 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:59:53,862 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:00:04,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:00:04,267 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:00:06,358 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:00:06,358 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:00:06,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:00:06 BoogieIcfgContainer [2021-11-25 19:00:06,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:00:06,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:00:06,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:00:06,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:00:06,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:59:46" (1/3) ... [2021-11-25 19:00:06,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a8f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:00:06, skipping insertion in model container [2021-11-25 19:00:06,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:59:51" (2/3) ... [2021-11-25 19:00:06,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a8f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:00:06, skipping insertion in model container [2021-11-25 19:00:06,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:00:06" (3/3) ... [2021-11-25 19:00:06,376 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-25 19:00:06,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:00:06,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:00:06,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:00:06,478 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:00:06,481 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:00:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) [2021-11-25 19:00:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-25 19:00:06,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:06,622 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:06,622 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:06,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:06,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1458294750, now seen corresponding path program 1 times [2021-11-25 19:00:06,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:00:06,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191630615] [2021-11-25 19:00:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:06,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:00:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-25 19:00:07,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:00:07,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191630615] [2021-11-25 19:00:07,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191630615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:07,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:07,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:00:07,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382723879] [2021-11-25 19:00:07,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:07,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:00:07,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:00:07,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:00:07,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:07,885 INFO L87 Difference]: Start difference. First operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:12,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:15,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:15,809 INFO L93 Difference]: Finished difference Result 7247 states and 11344 transitions. [2021-11-25 19:00:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:00:15,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 411 [2021-11-25 19:00:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:15,890 INFO L225 Difference]: With dead ends: 7247 [2021-11-25 19:00:15,890 INFO L226 Difference]: Without dead ends: 4762 [2021-11-25 19:00:15,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:15,931 INFO L933 BasicCegarLoop]: 4688 mSDtfsCounter, 3654 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3654 SdHoareTripleChecker+Valid, 8167 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:15,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3654 Valid, 8167 Invalid, 776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:00:15,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2021-11-25 19:00:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4757. [2021-11-25 19:00:16,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 2239 states have (on average 1.2478785171951765) internal successors, (2794), 2305 states have internal predecessors, (2794), 2297 states have call successors, (2297), 220 states have call predecessors, (2297), 220 states have return successors, (2316), 2263 states have call predecessors, (2316), 2297 states have call successors, (2316) [2021-11-25 19:00:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 7407 transitions. [2021-11-25 19:00:16,690 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 7407 transitions. Word has length 411 [2021-11-25 19:00:16,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:16,696 INFO L470 AbstractCegarLoop]: Abstraction has 4757 states and 7407 transitions. [2021-11-25 19:00:16,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 7407 transitions. [2021-11-25 19:00:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-25 19:00:16,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:16,718 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:16,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:00:16,721 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 751109315, now seen corresponding path program 1 times [2021-11-25 19:00:16,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:00:16,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105301136] [2021-11-25 19:00:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:16,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:00:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:17,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-25 19:00:17,451 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:00:17,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105301136] [2021-11-25 19:00:17,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105301136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:17,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:17,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:00:17,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474046500] [2021-11-25 19:00:17,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:17,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:00:17,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:00:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:00:17,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:17,458 INFO L87 Difference]: Start difference. First operand 4757 states and 7407 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:21,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:23,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:25,224 INFO L93 Difference]: Finished difference Result 13987 states and 21817 transitions. [2021-11-25 19:00:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:00:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 413 [2021-11-25 19:00:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:25,350 INFO L225 Difference]: With dead ends: 13987 [2021-11-25 19:00:25,350 INFO L226 Difference]: Without dead ends: 9303 [2021-11-25 19:00:25,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:25,406 INFO L933 BasicCegarLoop]: 4603 mSDtfsCounter, 3579 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 8020 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:25,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 8020 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 755 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-25 19:00:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9303 states. [2021-11-25 19:00:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9303 to 9291. [2021-11-25 19:00:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9291 states, 4356 states have (on average 1.2433425160697889) internal successors, (5416), 4490 states have internal predecessors, (5416), 4494 states have call successors, (4494), 440 states have call predecessors, (4494), 440 states have return successors, (4572), 4424 states have call predecessors, (4572), 4494 states have call successors, (4572) [2021-11-25 19:00:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 14482 transitions. [2021-11-25 19:00:26,556 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 14482 transitions. Word has length 413 [2021-11-25 19:00:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:26,561 INFO L470 AbstractCegarLoop]: Abstraction has 9291 states and 14482 transitions. [2021-11-25 19:00:26,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 14482 transitions. [2021-11-25 19:00:26,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-25 19:00:26,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:26,575 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:26,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:00:26,576 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash -873679616, now seen corresponding path program 1 times [2021-11-25 19:00:26,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:00:26,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949559840] [2021-11-25 19:00:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:26,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:00:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-25 19:00:27,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:00:27,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949559840] [2021-11-25 19:00:27,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949559840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:27,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:27,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:00:27,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360995912] [2021-11-25 19:00:27,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:27,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:00:27,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:00:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:00:27,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:27,018 INFO L87 Difference]: Start difference. First operand 9291 states and 14482 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:29,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:33,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:34,286 INFO L93 Difference]: Finished difference Result 27467 states and 42860 transitions. [2021-11-25 19:00:34,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:00:34,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 414 [2021-11-25 19:00:34,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:34,513 INFO L225 Difference]: With dead ends: 27467 [2021-11-25 19:00:34,514 INFO L226 Difference]: Without dead ends: 18249 [2021-11-25 19:00:34,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:34,610 INFO L933 BasicCegarLoop]: 4603 mSDtfsCounter, 3587 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 8020 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:34,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3587 Valid, 8020 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 19:00:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18249 states. [2021-11-25 19:00:36,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18249 to 18227. [2021-11-25 19:00:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18227 states, 8510 states have (on average 1.237367802585194) internal successors, (10530), 8778 states have internal predecessors, (10530), 8836 states have call successors, (8836), 880 states have call predecessors, (8836), 880 states have return successors, (9048), 8696 states have call predecessors, (9048), 8836 states have call successors, (9048) [2021-11-25 19:00:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18227 states to 18227 states and 28414 transitions. [2021-11-25 19:00:36,655 INFO L78 Accepts]: Start accepts. Automaton has 18227 states and 28414 transitions. Word has length 414 [2021-11-25 19:00:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:36,656 INFO L470 AbstractCegarLoop]: Abstraction has 18227 states and 28414 transitions. [2021-11-25 19:00:36,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:36,656 INFO L276 IsEmpty]: Start isEmpty. Operand 18227 states and 28414 transitions. [2021-11-25 19:00:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-25 19:00:36,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:36,670 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:36,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:00:36,670 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash -80510760, now seen corresponding path program 1 times [2021-11-25 19:00:36,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:00:36,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814929361] [2021-11-25 19:00:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:36,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:00:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-25 19:00:37,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:00:37,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814929361] [2021-11-25 19:00:37,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814929361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:37,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:37,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:00:37,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320413967] [2021-11-25 19:00:37,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:37,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:00:37,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:00:37,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:00:37,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:37,111 INFO L87 Difference]: Start difference. First operand 18227 states and 28414 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:39,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:41,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:43,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:45,803 INFO L93 Difference]: Finished difference Result 53847 states and 84041 transitions. [2021-11-25 19:00:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:00:45,804 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 412 [2021-11-25 19:00:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:46,060 INFO L225 Difference]: With dead ends: 53847 [2021-11-25 19:00:46,060 INFO L226 Difference]: Without dead ends: 35693 [2021-11-25 19:00:46,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:46,187 INFO L933 BasicCegarLoop]: 4616 mSDtfsCounter, 3579 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 8033 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:46,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 8033 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 755 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:00:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35693 states. [2021-11-25 19:00:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35693 to 35663. [2021-11-25 19:00:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35663 states, 16573 states have (on average 1.2301333494237616) internal successors, (20387), 17108 states have internal predecessors, (20387), 17343 states have call successors, (17343), 1747 states have call predecessors, (17343), 1746 states have return successors, (17873), 17063 states have call predecessors, (17873), 17343 states have call successors, (17873) [2021-11-25 19:00:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35663 states to 35663 states and 55603 transitions. [2021-11-25 19:00:49,873 INFO L78 Accepts]: Start accepts. Automaton has 35663 states and 55603 transitions. Word has length 412 [2021-11-25 19:00:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:00:49,875 INFO L470 AbstractCegarLoop]: Abstraction has 35663 states and 55603 transitions. [2021-11-25 19:00:49,876 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-25 19:00:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 35663 states and 55603 transitions. [2021-11-25 19:00:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-25 19:00:49,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:00:49,889 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:00:49,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:00:49,890 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:00:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:00:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -695554493, now seen corresponding path program 1 times [2021-11-25 19:00:49,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:00:49,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230719524] [2021-11-25 19:00:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:00:49,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:00:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:00:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-25 19:00:50,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:00:50,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230719524] [2021-11-25 19:00:50,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230719524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:00:50,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:00:50,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:00:50,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507077595] [2021-11-25 19:00:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:00:50,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:00:50,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:00:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:00:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:50,495 INFO L87 Difference]: Start difference. First operand 35663 states and 55603 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 19:00:53,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:00:55,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:00:58,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:00:58,847 INFO L93 Difference]: Finished difference Result 101832 states and 158808 transitions. [2021-11-25 19:00:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:00:58,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2021-11-25 19:00:58,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:00:59,566 INFO L225 Difference]: With dead ends: 101832 [2021-11-25 19:00:59,566 INFO L226 Difference]: Without dead ends: 66242 [2021-11-25 19:00:59,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:00:59,786 INFO L933 BasicCegarLoop]: 6199 mSDtfsCounter, 3305 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 9631 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:00:59,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3314 Valid, 9631 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 938 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-25 19:00:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66242 states. [2021-11-25 19:01:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66242 to 66205. [2021-11-25 19:01:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66205 states, 30451 states have (on average 1.2227513053758496) internal successors, (37234), 31505 states have internal predecessors, (37234), 32412 states have call successors, (32412), 3337 states have call predecessors, (32412), 3341 states have return successors, (33392), 31850 states have call predecessors, (33392), 32412 states have call successors, (33392) [2021-11-25 19:01:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66205 states to 66205 states and 103038 transitions. [2021-11-25 19:01:05,390 INFO L78 Accepts]: Start accepts. Automaton has 66205 states and 103038 transitions. Word has length 414 [2021-11-25 19:01:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:05,391 INFO L470 AbstractCegarLoop]: Abstraction has 66205 states and 103038 transitions. [2021-11-25 19:01:05,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 19:01:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 66205 states and 103038 transitions. [2021-11-25 19:01:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-25 19:01:05,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:05,403 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:05,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:01:05,403 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 73598017, now seen corresponding path program 1 times [2021-11-25 19:01:05,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:05,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014015260] [2021-11-25 19:01:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:05,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2021-11-25 19:01:05,853 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:05,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014015260] [2021-11-25 19:01:05,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014015260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:05,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:05,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:05,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416318687] [2021-11-25 19:01:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:05,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:01:05,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:01:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:01:05,857 INFO L87 Difference]: Start difference. First operand 66205 states and 103038 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:01:08,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:01:15,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:01:15,429 INFO L93 Difference]: Finished difference Result 194928 states and 305102 transitions. [2021-11-25 19:01:15,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:01:15,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 426 [2021-11-25 19:01:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:01:16,536 INFO L225 Difference]: With dead ends: 194928 [2021-11-25 19:01:16,536 INFO L226 Difference]: Without dead ends: 128796 [2021-11-25 19:01:16,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:01:16,921 INFO L933 BasicCegarLoop]: 4614 mSDtfsCounter, 3546 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 8069 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:01:16,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3551 Valid, 8069 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 698 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-11-25 19:01:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128796 states. [2021-11-25 19:01:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128796 to 128726. [2021-11-25 19:01:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128726 states, 58728 states have (on average 1.2189415610952186) internal successors, (71586), 60760 states have internal predecessors, (71586), 63513 states have call successors, (63513), 6508 states have call predecessors, (63513), 6484 states have return successors, (66909), 62305 states have call predecessors, (66909), 63513 states have call successors, (66909) [2021-11-25 19:01:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128726 states to 128726 states and 202008 transitions. [2021-11-25 19:01:26,879 INFO L78 Accepts]: Start accepts. Automaton has 128726 states and 202008 transitions. Word has length 426 [2021-11-25 19:01:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:01:26,880 INFO L470 AbstractCegarLoop]: Abstraction has 128726 states and 202008 transitions. [2021-11-25 19:01:26,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:01:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 128726 states and 202008 transitions. [2021-11-25 19:01:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-25 19:01:26,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:01:26,885 INFO L514 BasicCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:01:26,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:01:26,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:01:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:01:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1964302061, now seen corresponding path program 1 times [2021-11-25 19:01:26,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:01:26,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676890885] [2021-11-25 19:01:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:01:26,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:01:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:01:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2021-11-25 19:01:27,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:01:27,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676890885] [2021-11-25 19:01:27,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676890885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:01:27,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:01:27,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:01:27,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669306292] [2021-11-25 19:01:27,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:01:27,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:01:27,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:01:27,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:01:27,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:01:27,784 INFO L87 Difference]: Start difference. First operand 128726 states and 202008 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 19:01:30,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:01:32,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []