./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V --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 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:41:20,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:41:20,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:41:20,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:41:20,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:41:20,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:41:20,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:41:20,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:41:20,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:41:20,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:41:20,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:41:20,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:41:20,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:41:20,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:41:20,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:41:20,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:41:20,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:41:20,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:41:20,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:41:20,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:41:20,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:41:20,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:41:20,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:41:20,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:41:20,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:41:20,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:41:20,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:41:20,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:41:20,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:41:20,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:41:20,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:41:20,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:41:20,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:41:20,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:41:20,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:41:20,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:41:20,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:41:20,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:41:20,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:41:20,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:41:20,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:41:20,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:41:20,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:41:20,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:41:20,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:41:20,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:41:20,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:41:20,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:41:20,440 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:41:20,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:41:20,441 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:41:20,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:41:20,442 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:41:20,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:41:20,443 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:41:20,443 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:41:20,444 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:41:20,444 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:41:20,444 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:41:20,445 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:41:20,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:41:20,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:41:20,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:41:20,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:41:20,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:41:20,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:41:20,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:41:20,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:41:20,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:41:20,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:41:20,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:41:20,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:20,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:41:20,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:41:20,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:41:20,454 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:41:20,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:41:20,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:41:20,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:41:20,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:41:20,455 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_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2021-11-23 02:41:20,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:41:20,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:41:20,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:41:20,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:41:20,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:41:20,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:41:21,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/data/4303822f4/e82cd0c73a824fe8b33ed1914576b22d/FLAG3aafced16 [2021-11-23 02:41:22,272 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:41:22,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:41:22,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/data/4303822f4/e82cd0c73a824fe8b33ed1914576b22d/FLAG3aafced16 [2021-11-23 02:41:22,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/data/4303822f4/e82cd0c73a824fe8b33ed1914576b22d [2021-11-23 02:41:22,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:41:22,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:41:22,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:22,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:41:22,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:41:22,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:22,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f141d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22, skipping insertion in model container [2021-11-23 02:41:22,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:22,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:41:22,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:41:29,957 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_ae4cec6f-bbf4-42eb-9407-618af42984a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-23 02:41:29,960 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_ae4cec6f-bbf4-42eb-9407-618af42984a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-23 02:41:29,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:30,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:41:31,106 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_ae4cec6f-bbf4-42eb-9407-618af42984a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-23 02:41:31,106 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_ae4cec6f-bbf4-42eb-9407-618af42984a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-23 02:41:31,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:31,754 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:41:31,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31 WrapperNode [2021-11-23 02:41:31,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:31,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:31,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:41:31,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:41:31,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:32,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:32,609 INFO L137 Inliner]: procedures = 618, calls = 8979, calls flagged for inlining = 319, calls inlined = 245, statements flattened = 13575 [2021-11-23 02:41:32,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:32,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:41:32,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:41:32,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:41:32,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:32,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:32,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:32,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:33,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:33,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:33,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:33,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:41:33,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:41:33,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:41:33,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:41:33,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (1/1) ... [2021-11-23 02:41:33,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:33,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:34,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:41:34,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4cec6f-bbf4-42eb-9407-618af42984a2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:41:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 02:41:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 02:41:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:41:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:41:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:41:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:41:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2021-11-23 02:41:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2021-11-23 02:41:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2021-11-23 02:41:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2021-11-23 02:41:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2021-11-23 02:41:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2021-11-23 02:41:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-23 02:41:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-23 02:41:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2021-11-23 02:41:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2021-11-23 02:41:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2021-11-23 02:41:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2021-11-23 02:41:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-23 02:41:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-23 02:41:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-23 02:41:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2021-11-23 02:41:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2021-11-23 02:41:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2021-11-23 02:41:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2021-11-23 02:41:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2021-11-23 02:41:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2021-11-23 02:41:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2021-11-23 02:41:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2021-11-23 02:41:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:41:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:41:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59 [2021-11-23 02:41:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59 [2021-11-23 02:41:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:41:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2021-11-23 02:41:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2021-11-23 02:41:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2021-11-23 02:41:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2021-11-23 02:41:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:41:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:41:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 02:41:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 02:41:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:41:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:41:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:41:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:41:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:41:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:41:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-23 02:41:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-23 02:41:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:41:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-23 02:41:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-23 02:41:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2021-11-23 02:41:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2021-11-23 02:41:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2021-11-23 02:41:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2021-11-23 02:41:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 02:41:34,099 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 02:41:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-23 02:41:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-23 02:41:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2021-11-23 02:41:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2021-11-23 02:41:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:41:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:41:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2021-11-23 02:41:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2021-11-23 02:41:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:41:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2021-11-23 02:41:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2021-11-23 02:41:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:41:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:41:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-11-23 02:41:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-11-23 02:41:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:41:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2021-11-23 02:41:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2021-11-23 02:41:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:41:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:41:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2021-11-23 02:41:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2021-11-23 02:41:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2021-11-23 02:41:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2021-11-23 02:41:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-23 02:41:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-23 02:41:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:41:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-23 02:41:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-23 02:41:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:41:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:41:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:41:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:41:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:41:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:41:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-23 02:41:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-23 02:41:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:41:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:41:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:41:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:41:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2021-11-23 02:41:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2021-11-23 02:41:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-23 02:41:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-23 02:41:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2021-11-23 02:41:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2021-11-23 02:41:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-23 02:41:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 02:41:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 02:41:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-23 02:41:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-23 02:41:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:41:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-23 02:41:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-23 02:41:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:41:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:41:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:41:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 02:41:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:41:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:41:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2021-11-23 02:41:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2021-11-23 02:41:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2021-11-23 02:41:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2021-11-23 02:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:41:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2021-11-23 02:41:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2021-11-23 02:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:41:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2021-11-23 02:41:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2021-11-23 02:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:41:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:41:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:41:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-23 02:41:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-23 02:41:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2021-11-23 02:41:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2021-11-23 02:41:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2021-11-23 02:41:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2021-11-23 02:41:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2021-11-23 02:41:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2021-11-23 02:41:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:41:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:41:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2021-11-23 02:41:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2021-11-23 02:41:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-23 02:41:34,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-23 02:41:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2021-11-23 02:41:34,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2021-11-23 02:41:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:41:34,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:41:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-23 02:41:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-23 02:41:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:41:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:41:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:41:34,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:41:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-23 02:41:34,140 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-23 02:41:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2021-11-23 02:41:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2021-11-23 02:41:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-23 02:41:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-23 02:41:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2021-11-23 02:41:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2021-11-23 02:41:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-23 02:41:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-23 02:41:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-23 02:41:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-23 02:41:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-23 02:41:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-23 02:41:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-23 02:41:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-23 02:41:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2021-11-23 02:41:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2021-11-23 02:41:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-23 02:41:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-23 02:41:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:41:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:41:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2021-11-23 02:41:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2021-11-23 02:41:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2021-11-23 02:41:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2021-11-23 02:41:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2021-11-23 02:41:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2021-11-23 02:41:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:41:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:41:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-23 02:41:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-23 02:41:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2021-11-23 02:41:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2021-11-23 02:41:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-23 02:41:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-23 02:41:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2021-11-23 02:41:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2021-11-23 02:41:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2021-11-23 02:41:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2021-11-23 02:41:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 02:41:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 02:41:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-23 02:41:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-23 02:41:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-23 02:41:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-23 02:41:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2021-11-23 02:41:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2021-11-23 02:41:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59___0 [2021-11-23 02:41:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59___0 [2021-11-23 02:41:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2021-11-23 02:41:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2021-11-23 02:41:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2021-11-23 02:41:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2021-11-23 02:41:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:41:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:41:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:41:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-11-23 02:41:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-11-23 02:41:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:41:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2021-11-23 02:41:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2021-11-23 02:41:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2021-11-23 02:41:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2021-11-23 02:41:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2021-11-23 02:41:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2021-11-23 02:41:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-23 02:41:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-23 02:41:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2021-11-23 02:41:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2021-11-23 02:41:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:41:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:41:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:41:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-23 02:41:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-23 02:41:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:41:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:41:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2021-11-23 02:41:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2021-11-23 02:41:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 02:41:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 02:41:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2021-11-23 02:41:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2021-11-23 02:41:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-23 02:41:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-23 02:41:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-23 02:41:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-23 02:41:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:41:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:41:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2021-11-23 02:41:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2021-11-23 02:41:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:41:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:41:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 02:41:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 02:41:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uvc_clock [2021-11-23 02:41:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uvc_clock [2021-11-23 02:41:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2021-11-23 02:41:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2021-11-23 02:41:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-11-23 02:41:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-11-23 02:41:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-23 02:41:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-23 02:41:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2021-11-23 02:41:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2021-11-23 02:41:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-23 02:41:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-23 02:41:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2021-11-23 02:41:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2021-11-23 02:41:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2021-11-23 02:41:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2021-11-23 02:41:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:41:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:41:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:41:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:41:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:41:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-23 02:41:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-23 02:41:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-23 02:41:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-23 02:41:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:41:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:41:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2021-11-23 02:41:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2021-11-23 02:41:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 02:41:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 02:41:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2021-11-23 02:41:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2021-11-23 02:41:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2021-11-23 02:41:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2021-11-23 02:41:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-23 02:41:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-23 02:41:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2021-11-23 02:41:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2021-11-23 02:41:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2021-11-23 02:41:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2021-11-23 02:41:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-23 02:41:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-23 02:41:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-23 02:41:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-23 02:41:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-23 02:41:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-23 02:41:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-23 02:41:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-23 02:41:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 02:41:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 02:41:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2021-11-23 02:41:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2021-11-23 02:41:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2021-11-23 02:41:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2021-11-23 02:41:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:41:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:41:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2021-11-23 02:41:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2021-11-23 02:41:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2021-11-23 02:41:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2021-11-23 02:41:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2021-11-23 02:41:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2021-11-23 02:41:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-23 02:41:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-23 02:41:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-23 02:41:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-23 02:41:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2021-11-23 02:41:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2021-11-23 02:41:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2021-11-23 02:41:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2021-11-23 02:41:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:41:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-11-23 02:41:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-11-23 02:41:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2021-11-23 02:41:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2021-11-23 02:41:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:41:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:41:35,757 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:41:35,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:41:36,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:41:36,767 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: SUMMARY for call __copy_to_user_nocheck_#t~ret1078#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-23 02:41:36,767 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,768 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,771 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,773 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,773 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,773 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,773 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11833: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1076#1 && __copy_to_user_nocheck_#t~ret1076#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1076#1;havoc __copy_to_user_nocheck_#t~ret1076#1; [2021-11-23 02:41:36,773 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: SUMMARY for call __copy_to_user_nocheck_#t~ret1076#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-11-23 02:41:36,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: SUMMARY for call __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-11-23 02:41:36,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,774 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11859: __copy_to_user_nocheck_~tmp___2~10#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:41:36,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:36,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:36,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11847: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2021-11-23 02:41:36,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:36,776 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:41:40,548 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: SUMMARY for call __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-11-23 02:41:40,548 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,548 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: SUMMARY for call __copy_from_user_nocheck_#t~ret1071#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11729: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1071#1 && __copy_from_user_nocheck_#t~ret1071#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1071#1;havoc __copy_from_user_nocheck_#t~ret1071#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:41:40,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11756: __copy_from_user_nocheck_~tmp___2~9#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: SUMMARY for call __copy_from_user_nocheck_#t~ret1073#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:41:40,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:45:26,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:45:26,244 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:45:30,122 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:45:30,123 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 02:45:30,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:30 BoogieIcfgContainer [2021-11-23 02:45:30,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:45:30,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:45:30,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:45:30,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:45:30,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:22" (1/3) ... [2021-11-23 02:45:30,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dcad6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:30, skipping insertion in model container [2021-11-23 02:45:30,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:31" (2/3) ... [2021-11-23 02:45:30,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dcad6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:30, skipping insertion in model container [2021-11-23 02:45:30,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:30" (3/3) ... [2021-11-23 02:45:30,144 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:45:30,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:45:30,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:45:30,243 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:45:30,254 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 [2021-11-23 02:45:30,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:45:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) [2021-11-23 02:45:30,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-23 02:45:30,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:30,391 INFO L514 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:30,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:30,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:30,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2049443887, now seen corresponding path program 1 times [2021-11-23 02:45:30,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:30,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524266751] [2021-11-23 02:45:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:30,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-23 02:45:32,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:32,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524266751] [2021-11-23 02:45:32,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524266751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:32,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:32,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:45:32,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810698181] [2021-11-23 02:45:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:32,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:45:32,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:45:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:32,270 INFO L87 Difference]: Start difference. First operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 02:45:34,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:36,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:39,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:45:42,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:45,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:50,177 INFO L93 Difference]: Finished difference Result 6711 states and 9876 transitions. [2021-11-23 02:45:50,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:45:50,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 336 [2021-11-23 02:45:50,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:50,252 INFO L225 Difference]: With dead ends: 6711 [2021-11-23 02:45:50,252 INFO L226 Difference]: Without dead ends: 4380 [2021-11-23 02:45:50,282 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 [2021-11-23 02:45:50,290 INFO L933 BasicCegarLoop]: 3461 mSDtfsCounter, 3069 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:50,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3071 Valid, 6286 Invalid, 1113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1097 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-23 02:45:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2021-11-23 02:45:50,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4376. [2021-11-23 02:45:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 2841 states have (on average 1.365364308342133) internal successors, (3879), 2877 states have internal predecessors, (3879), 1230 states have call successors, (1230), 304 states have call predecessors, (1230), 304 states have return successors, (1232), 1216 states have call predecessors, (1232), 1230 states have call successors, (1232) [2021-11-23 02:45:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 6341 transitions. [2021-11-23 02:45:50,791 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 6341 transitions. Word has length 336 [2021-11-23 02:45:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:50,798 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 6341 transitions. [2021-11-23 02:45:50,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 02:45:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 6341 transitions. [2021-11-23 02:45:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-23 02:45:50,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:50,825 INFO L514 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:50,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:45:50,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:45:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 901773366, now seen corresponding path program 1 times [2021-11-23 02:45:50,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:50,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689098916] [2021-11-23 02:45:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:50,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-23 02:45:51,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689098916] [2021-11-23 02:45:51,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689098916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:51,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:51,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:45:51,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833229483] [2021-11-23 02:45:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:51,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:45:51,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:51,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:45:51,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:45:51,873 INFO L87 Difference]: Start difference. First operand 4376 states and 6341 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:45:54,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:57,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:59,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:02,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:04,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:08,049 INFO L93 Difference]: Finished difference Result 11105 states and 15969 transitions. [2021-11-23 02:46:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:08,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 361 [2021-11-23 02:46:08,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:08,112 INFO L225 Difference]: With dead ends: 11105 [2021-11-23 02:46:08,112 INFO L226 Difference]: Without dead ends: 6792 [2021-11-23 02:46:08,132 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 [2021-11-23 02:46:08,134 INFO L933 BasicCegarLoop]: 3150 mSDtfsCounter, 1706 mSDsluCounter, 3278 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 16 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:08,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1708 Valid, 5913 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1090 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2021-11-23 02:46:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6792 states. [2021-11-23 02:46:08,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6792 to 6784. [2021-11-23 02:46:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6784 states, 4342 states have (on average 1.3470750806080147) internal successors, (5849), 4394 states have internal predecessors, (5849), 1920 states have call successors, (1920), 523 states have call predecessors, (1920), 521 states have return successors, (1924), 1896 states have call predecessors, (1924), 1920 states have call successors, (1924) [2021-11-23 02:46:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6784 states to 6784 states and 9693 transitions. [2021-11-23 02:46:08,521 INFO L78 Accepts]: Start accepts. Automaton has 6784 states and 9693 transitions. Word has length 361 [2021-11-23 02:46:08,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:08,526 INFO L470 AbstractCegarLoop]: Abstraction has 6784 states and 9693 transitions. [2021-11-23 02:46:08,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:46:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6784 states and 9693 transitions. [2021-11-23 02:46:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-23 02:46:08,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:08,542 INFO L514 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:08,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:46:08,542 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:08,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:08,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1000917766, now seen corresponding path program 1 times [2021-11-23 02:46:08,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:08,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212701178] [2021-11-23 02:46:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:08,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-23 02:46:09,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:09,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212701178] [2021-11-23 02:46:09,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212701178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:09,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:09,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:46:09,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290525401] [2021-11-23 02:46:09,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:09,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:09,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:09,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:09,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:09,327 INFO L87 Difference]: Start difference. First operand 6784 states and 9693 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:46:11,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:15,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:17,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:19,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:22,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:27,329 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 [] [2021-11-23 02:46:27,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:27,586 INFO L93 Difference]: Finished difference Result 18622 states and 26622 transitions. [2021-11-23 02:46:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:27,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 355 [2021-11-23 02:46:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:27,689 INFO L225 Difference]: With dead ends: 18622 [2021-11-23 02:46:27,689 INFO L226 Difference]: Without dead ends: 11901 [2021-11-23 02:46:27,724 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 [2021-11-23 02:46:27,726 INFO L933 BasicCegarLoop]: 3431 mSDtfsCounter, 2762 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2764 SdHoareTripleChecker+Valid, 6192 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:27,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2764 Valid, 6192 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 17.9s Time] [2021-11-23 02:46:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11901 states. [2021-11-23 02:46:28,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11901 to 11891. [2021-11-23 02:46:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11891 states, 7679 states have (on average 1.3506967053001693) internal successors, (10372), 7785 states have internal predecessors, (10372), 3296 states have call successors, (3296), 919 states have call predecessors, (3296), 915 states have return successors, (3306), 3240 states have call predecessors, (3306), 3296 states have call successors, (3306) [2021-11-23 02:46:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11891 states to 11891 states and 16974 transitions. [2021-11-23 02:46:28,453 INFO L78 Accepts]: Start accepts. Automaton has 11891 states and 16974 transitions. Word has length 355 [2021-11-23 02:46:28,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:28,454 INFO L470 AbstractCegarLoop]: Abstraction has 11891 states and 16974 transitions. [2021-11-23 02:46:28,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:46:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11891 states and 16974 transitions. [2021-11-23 02:46:28,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-23 02:46:28,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:28,470 INFO L514 BasicCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 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] [2021-11-23 02:46:28,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:46:28,470 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash 856368349, now seen corresponding path program 1 times [2021-11-23 02:46:28,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:28,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502873277] [2021-11-23 02:46:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:28,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2021-11-23 02:46:29,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:29,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502873277] [2021-11-23 02:46:29,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502873277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:29,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:29,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:46:29,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797031396] [2021-11-23 02:46:29,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:29,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:29,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:29,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:29,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:29,489 INFO L87 Difference]: Start difference. First operand 11891 states and 16974 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-23 02:46:31,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:34,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:37,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:38,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:41,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:46,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:47,279 INFO L93 Difference]: Finished difference Result 26283 states and 37423 transitions. [2021-11-23 02:46:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:47,280 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 360 [2021-11-23 02:46:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:47,380 INFO L225 Difference]: With dead ends: 26283 [2021-11-23 02:46:47,380 INFO L226 Difference]: Without dead ends: 14455 [2021-11-23 02:46:47,435 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 [2021-11-23 02:46:47,436 INFO L933 BasicCegarLoop]: 3366 mSDtfsCounter, 2626 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 6088 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:47,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2626 Valid, 6088 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1115 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2021-11-23 02:46:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14455 states. [2021-11-23 02:46:48,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14455 to 14453. [2021-11-23 02:46:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14453 states, 9356 states have (on average 1.3468362548097477) internal successors, (12601), 9482 states have internal predecessors, (12601), 3950 states have call successors, (3950), 1150 states have call predecessors, (3950), 1146 states have return successors, (3963), 3884 states have call predecessors, (3963), 3950 states have call successors, (3963) [2021-11-23 02:46:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14453 states to 14453 states and 20514 transitions. [2021-11-23 02:46:48,095 INFO L78 Accepts]: Start accepts. Automaton has 14453 states and 20514 transitions. Word has length 360 [2021-11-23 02:46:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:48,096 INFO L470 AbstractCegarLoop]: Abstraction has 14453 states and 20514 transitions. [2021-11-23 02:46:48,096 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-23 02:46:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14453 states and 20514 transitions. [2021-11-23 02:46:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-23 02:46:48,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:48,108 INFO L514 BasicCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:46:48,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:48,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:48,109 INFO L85 PathProgramCache]: Analyzing trace with hash 475382644, now seen corresponding path program 1 times [2021-11-23 02:46:48,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:48,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315518129] [2021-11-23 02:46:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:48,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2021-11-23 02:46:48,857 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:48,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315518129] [2021-11-23 02:46:48,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315518129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:48,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:48,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:46:48,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479186848] [2021-11-23 02:46:48,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:48,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:48,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:48,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:48,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:48,860 INFO L87 Difference]: Start difference. First operand 14453 states and 20514 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-23 02:46:51,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:58,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:47:01,064 INFO L93 Difference]: Finished difference Result 30908 states and 43659 transitions. [2021-11-23 02:47:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:47:01,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 381 [2021-11-23 02:47:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:47:01,141 INFO L225 Difference]: With dead ends: 30908 [2021-11-23 02:47:01,141 INFO L226 Difference]: Without dead ends: 16518 [2021-11-23 02:47:01,191 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 [2021-11-23 02:47:01,192 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 1715 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:47:01,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 6497 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1220 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2021-11-23 02:47:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16518 states. [2021-11-23 02:47:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16518 to 16510. [2021-11-23 02:47:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16510 states, 10587 states have (on average 1.3346557098328138) internal successors, (14130), 10722 states have internal predecessors, (14130), 4539 states have call successors, (4539), 1386 states have call predecessors, (4539), 1383 states have return successors, (4553), 4465 states have call predecessors, (4553), 4539 states have call successors, (4553) [2021-11-23 02:47:01,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16510 states to 16510 states and 23222 transitions. [2021-11-23 02:47:01,880 INFO L78 Accepts]: Start accepts. Automaton has 16510 states and 23222 transitions. Word has length 381 [2021-11-23 02:47:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:47:01,882 INFO L470 AbstractCegarLoop]: Abstraction has 16510 states and 23222 transitions. [2021-11-23 02:47:01,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-23 02:47:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16510 states and 23222 transitions. [2021-11-23 02:47:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-23 02:47:01,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:47:01,900 INFO L514 BasicCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:47:01,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:47:01,900 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:47:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:47:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2119437669, now seen corresponding path program 1 times [2021-11-23 02:47:01,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:47:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878944602] [2021-11-23 02:47:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:47:01,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:47:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:47:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4349 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4340 trivial. 0 not checked. [2021-11-23 02:47:02,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:47:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878944602] [2021-11-23 02:47:02,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878944602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:47:02,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:47:02,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:47:02,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441239950] [2021-11-23 02:47:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:47:02,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:47:02,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:47:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:47:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:47:02,573 INFO L87 Difference]: Start difference. First operand 16510 states and 23222 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-23 02:47:04,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:08,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:47:19,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:29,043 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 [] [2021-11-23 02:47:29,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:47:29,393 INFO L93 Difference]: Finished difference Result 61892 states and 87297 transitions. [2021-11-23 02:47:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:47:29,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 434 [2021-11-23 02:47:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:47:29,627 INFO L225 Difference]: With dead ends: 61892 [2021-11-23 02:47:29,627 INFO L226 Difference]: Without dead ends: 46008 [2021-11-23 02:47:29,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:47:29,692 INFO L933 BasicCegarLoop]: 4484 mSDtfsCounter, 9766 mSDsluCounter, 8373 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 2461 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9770 SdHoareTripleChecker+Valid, 11651 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2461 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:47:29,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9770 Valid, 11651 Invalid, 4335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2461 Valid, 1870 Invalid, 4 Unknown, 0 Unchecked, 25.4s Time] [2021-11-23 02:47:29,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46008 states. [2021-11-23 02:47:31,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46008 to 45988. [2021-11-23 02:47:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45988 states, 29648 states have (on average 1.3430585536967081) internal successors, (39819), 29993 states have internal predecessors, (39819), 12504 states have call successors, (12504), 3846 states have call predecessors, (12504), 3835 states have return successors, (12550), 12322 states have call predecessors, (12550), 12504 states have call successors, (12550) [2021-11-23 02:47:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45988 states to 45988 states and 64873 transitions. [2021-11-23 02:47:31,710 INFO L78 Accepts]: Start accepts. Automaton has 45988 states and 64873 transitions. Word has length 434 [2021-11-23 02:47:31,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:47:31,713 INFO L470 AbstractCegarLoop]: Abstraction has 45988 states and 64873 transitions. [2021-11-23 02:47:31,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-23 02:47:31,714 INFO L276 IsEmpty]: Start isEmpty. Operand 45988 states and 64873 transitions. [2021-11-23 02:47:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-23 02:47:31,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:47:31,748 INFO L514 BasicCegarLoop]: trace histogram [39, 32, 32, 32, 32, 32, 32, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:47:31,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:47:31,749 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:47:31,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:47:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1173510198, now seen corresponding path program 1 times [2021-11-23 02:47:31,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:47:31,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79494829] [2021-11-23 02:47:31,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:47:31,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:47:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:47:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4492 trivial. 0 not checked. [2021-11-23 02:47:33,132 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:47:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79494829] [2021-11-23 02:47:33,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79494829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:47:33,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:47:33,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:47:33,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035116115] [2021-11-23 02:47:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:47:33,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:47:33,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:47:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:47:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:47:33,134 INFO L87 Difference]: Start difference. First operand 45988 states and 64873 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-23 02:47:35,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:40,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:47:43,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:44,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:47,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:53,975 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 [] [2021-11-23 02:47:55,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:47:55,040 INFO L93 Difference]: Finished difference Result 106246 states and 149942 transitions. [2021-11-23 02:47:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:47:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 446 [2021-11-23 02:47:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:47:55,482 INFO L225 Difference]: With dead ends: 106246 [2021-11-23 02:47:55,483 INFO L226 Difference]: Without dead ends: 60884 [2021-11-23 02:47:55,599 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 [2021-11-23 02:47:55,600 INFO L933 BasicCegarLoop]: 5313 mSDtfsCounter, 3035 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3037 SdHoareTripleChecker+Valid, 8067 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:47:55,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3037 Valid, 8067 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1582 Invalid, 4 Unknown, 0 Unchecked, 20.3s Time] [2021-11-23 02:47:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60884 states. [2021-11-23 02:47:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60884 to 60854. [2021-11-23 02:47:58,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60854 states, 39236 states have (on average 1.3421092873891325) internal successors, (52659), 39701 states have internal predecessors, (52659), 16526 states have call successors, (16526), 5104 states have call predecessors, (16526), 5091 states have return successors, (16596), 16280 states have call predecessors, (16596), 16526 states have call successors, (16596) [2021-11-23 02:47:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60854 states to 60854 states and 85781 transitions. [2021-11-23 02:47:58,799 INFO L78 Accepts]: Start accepts. Automaton has 60854 states and 85781 transitions. Word has length 446 [2021-11-23 02:47:58,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:47:58,800 INFO L470 AbstractCegarLoop]: Abstraction has 60854 states and 85781 transitions. [2021-11-23 02:47:58,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-23 02:47:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 60854 states and 85781 transitions. [2021-11-23 02:47:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-23 02:47:58,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:47:58,876 INFO L514 BasicCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:47:58,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:47:58,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:47:58,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:47:58,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2144313356, now seen corresponding path program 1 times [2021-11-23 02:47:58,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:47:58,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553455853] [2021-11-23 02:47:58,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:47:58,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:47:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:47:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4341 trivial. 0 not checked. [2021-11-23 02:47:59,716 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:47:59,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553455853] [2021-11-23 02:47:59,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553455853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:47:59,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:47:59,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:47:59,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529297870] [2021-11-23 02:47:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:47:59,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:47:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:47:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:47:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:47:59,720 INFO L87 Difference]: Start difference. First operand 60854 states and 85781 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-23 02:48:01,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:05,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:48:08,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:12,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:14,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:17,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:48:21,780 INFO L93 Difference]: Finished difference Result 137987 states and 193931 transitions. [2021-11-23 02:48:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:48:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 456 [2021-11-23 02:48:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:48:22,320 INFO L225 Difference]: With dead ends: 137987 [2021-11-23 02:48:22,320 INFO L226 Difference]: Without dead ends: 77759 [2021-11-23 02:48:22,505 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 [2021-11-23 02:48:22,506 INFO L933 BasicCegarLoop]: 4490 mSDtfsCounter, 2822 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:48:22,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2823 Valid, 6855 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1312 Invalid, 3 Unknown, 0 Unchecked, 19.7s Time] [2021-11-23 02:48:22,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77759 states. [2021-11-23 02:48:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77759 to 77724. [2021-11-23 02:48:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77724 states, 49816 states have (on average 1.3348522563031957) internal successors, (66497), 50432 states have internal predecessors, (66497), 21109 states have call successors, (21109), 6811 states have call predecessors, (21109), 6798 states have return successors, (21195), 20793 states have call predecessors, (21195), 21109 states have call successors, (21195) [2021-11-23 02:48:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77724 states to 77724 states and 108801 transitions. [2021-11-23 02:48:26,784 INFO L78 Accepts]: Start accepts. Automaton has 77724 states and 108801 transitions. Word has length 456 [2021-11-23 02:48:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:48:26,785 INFO L470 AbstractCegarLoop]: Abstraction has 77724 states and 108801 transitions. [2021-11-23 02:48:26,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-23 02:48:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 77724 states and 108801 transitions. [2021-11-23 02:48:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-23 02:48:26,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:48:26,829 INFO L514 BasicCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:48:26,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:48:26,830 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:48:26,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:48:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1475936292, now seen corresponding path program 1 times [2021-11-23 02:48:26,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:48:26,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124865398] [2021-11-23 02:48:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:48:26,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:48:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:48:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4343 trivial. 0 not checked. [2021-11-23 02:48:27,890 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:48:27,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124865398] [2021-11-23 02:48:27,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124865398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:48:27,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:48:27,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:48:27,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231603789] [2021-11-23 02:48:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:48:27,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:48:27,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:48:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:48:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:48:27,894 INFO L87 Difference]: Start difference. First operand 77724 states and 108801 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-23 02:48:30,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:32,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:36,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:48:42,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:45,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:48,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:48:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:48:53,421 INFO L93 Difference]: Finished difference Result 185888 states and 260350 transitions. [2021-11-23 02:48:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:48:53,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 454 [2021-11-23 02:48:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:48:54,294 INFO L225 Difference]: With dead ends: 185888 [2021-11-23 02:48:54,294 INFO L226 Difference]: Without dead ends: 108790 [2021-11-23 02:48:54,503 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 [2021-11-23 02:48:54,504 INFO L933 BasicCegarLoop]: 5103 mSDtfsCounter, 2770 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 7853 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:48:54,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 7853 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1542 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2021-11-23 02:48:54,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108790 states. [2021-11-23 02:48:58,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108790 to 108756. [2021-11-23 02:48:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108756 states, 69980 states have (on average 1.3359388396684768) internal successors, (93489), 70880 states have internal predecessors, (93489), 29227 states have call successors, (29227), 9569 states have call predecessors, (29227), 9548 states have return successors, (29357), 28739 states have call predecessors, (29357), 29227 states have call successors, (29357) [2021-11-23 02:48:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108756 states to 108756 states and 152073 transitions. [2021-11-23 02:48:59,622 INFO L78 Accepts]: Start accepts. Automaton has 108756 states and 152073 transitions. Word has length 454 [2021-11-23 02:48:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:48:59,625 INFO L470 AbstractCegarLoop]: Abstraction has 108756 states and 152073 transitions. [2021-11-23 02:48:59,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-23 02:48:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 108756 states and 152073 transitions. [2021-11-23 02:48:59,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-23 02:48:59,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:48:59,693 INFO L514 BasicCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:48:59,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:48:59,694 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:48:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:48:59,695 INFO L85 PathProgramCache]: Analyzing trace with hash -694661052, now seen corresponding path program 1 times [2021-11-23 02:48:59,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:48:59,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957652507] [2021-11-23 02:48:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:48:59,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:49:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:49:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2021-11-23 02:49:01,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:49:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957652507] [2021-11-23 02:49:01,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957652507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:49:01,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:49:01,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:49:01,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063765325] [2021-11-23 02:49:01,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:49:01,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:49:01,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:49:01,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:49:01,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:49:01,769 INFO L87 Difference]: Start difference. First operand 108756 states and 152073 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-23 02:49:04,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:08,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:23,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:30,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:32,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:37,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:39,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:49:44,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:49:51,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:49:58,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:49:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:49:59,456 INFO L93 Difference]: Finished difference Result 210914 states and 297288 transitions. [2021-11-23 02:49:59,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:49:59,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 493 [2021-11-23 02:49:59,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:50:00,679 INFO L225 Difference]: With dead ends: 210914 [2021-11-23 02:50:00,679 INFO L226 Difference]: Without dead ends: 210912 [2021-11-23 02:50:00,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:50:00,754 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 2969 mSDsluCounter, 19366 mSDsCounter, 0 mSdLazyCounter, 5496 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 20949 SdHoareTripleChecker+Invalid, 5507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5496 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:50:00,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2973 Valid, 20949 Invalid, 5507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5496 Invalid, 5 Unknown, 0 Unchecked, 49.5s Time] [2021-11-23 02:50:00,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210912 states. [2021-11-23 02:50:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210912 to 210285. [2021-11-23 02:50:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210285 states, 136206 states have (on average 1.339838186276669) internal successors, (182494), 138120 states have internal predecessors, (182494), 56308 states have call successors, (56308), 18276 states have call predecessors, (56308), 17770 states have return successors, (57092), 54705 states have call predecessors, (57092), 56308 states have call successors, (57092)