./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-gspca-stv06xx-gspca_stv06xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:16:03,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:16:03,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:16:03,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:16:03,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:16:03,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:16:03,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:16:03,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:16:03,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:16:03,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:16:03,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:16:03,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:16:03,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:16:03,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:16:03,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:16:03,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:16:03,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:16:03,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:16:03,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:16:03,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:16:03,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:16:03,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:16:03,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:16:03,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:16:03,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:16:03,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:16:03,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:16:03,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:16:03,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:16:03,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:16:03,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:16:03,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:16:03,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:16:03,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:16:03,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:16:03,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:16:03,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:16:03,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:16:03,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:16:03,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:16:03,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:16:03,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:16:03,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:16:03,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:16:03,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:16:03,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:16:03,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:16:03,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:16:03,480 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:16:03,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:16:03,480 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:16:03,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:16:03,482 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:16:03,482 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:16:03,482 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:16:03,483 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:16:03,483 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:16:03,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:16:03,484 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:16:03,484 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:16:03,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:16:03,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:16:03,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:16:03,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:16:03,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:16:03,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:16:03,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:16:03,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:16:03,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:16:03,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:16:03,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:16:03,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:16:03,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:16:03,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:16:03,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:16:03,491 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:16:03,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:16:03,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:16:03,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:16:03,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:16:03,493 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_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-25 20:16:03,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:16:03,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:16:03,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:16:03,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:16:03,801 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:16:03,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-25 20:16:03,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/data/202636427/888d60468d3346a99a49afbd715320dc/FLAG0b8597519 [2021-11-25 20:16:04,782 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:16:04,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-25 20:16:04,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/data/202636427/888d60468d3346a99a49afbd715320dc/FLAG0b8597519 [2021-11-25 20:16:05,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/data/202636427/888d60468d3346a99a49afbd715320dc [2021-11-25 20:16:05,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:16:05,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:16:05,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:16:05,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:16:05,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:16:05,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:16:05" (1/1) ... [2021-11-25 20:16:05,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472b4a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:05, skipping insertion in model container [2021-11-25 20:16:05,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:16:05" (1/1) ... [2021-11-25 20:16:05,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:16:05,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:16:07,823 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_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-25 20:16:07,826 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_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-25 20:16:07,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:16:07,895 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:16:08,377 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_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-25 20:16:08,378 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_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-25 20:16:08,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:16:08,573 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:16:08,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08 WrapperNode [2021-11-25 20:16:08,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:16:08,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:16:08,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:16:08,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:16:08,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:08,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:08,909 INFO L137 Inliner]: procedures = 323, calls = 1881, calls flagged for inlining = 162, calls inlined = 153, statements flattened = 4400 [2021-11-25 20:16:08,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:16:08,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:16:08,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:16:08,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:16:08,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:08,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:08,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:08,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:09,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:09,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:09,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:09,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:16:09,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:16:09,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:16:09,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:16:09,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (1/1) ... [2021-11-25 20:16:09,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:16:09,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:16:09,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:16:09,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e7d3a9b-fc46-455d-9bde-9ad93b23fbb1/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:16:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_dump [2021-11-25 20:16:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_dump [2021-11-25 20:16:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_init_controls [2021-11-25 20:16:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_init_controls [2021-11-25 20:16:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-25 20:16:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-25 20:16:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_init [2021-11-25 20:16:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_init [2021-11-25 20:16:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:16:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:16:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:16:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor_bytes [2021-11-25 20:16:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor_bytes [2021-11-25 20:16:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:16:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:16:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-25 20:16:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-25 20:16:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_14_2 [2021-11-25 20:16:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_14_2 [2021-11-25 20:16:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:16:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:16:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_stop [2021-11-25 20:16:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_stop [2021-11-25 20:16:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_probe_1020 [2021-11-25 20:16:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_probe_1020 [2021-11-25 20:16:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:16:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:16:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-25 20:16:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-25 20:16:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_start [2021-11-25 20:16:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_start [2021-11-25 20:16:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_init [2021-11-25 20:16:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_init [2021-11-25 20:16:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:16:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-25 20:16:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-25 20:16:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor [2021-11-25 20:16:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor [2021-11-25 20:16:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:16:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_probe_1x00 [2021-11-25 20:16:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_probe_1x00 [2021-11-25 20:16:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:16:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:16:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_s_ctrl [2021-11-25 20:16:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_s_ctrl [2021-11-25 20:16:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-25 20:16:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-25 20:16:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-25 20:16:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-25 20:16:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:16:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:16:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:16:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_s_ctrl [2021-11-25 20:16:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_s_ctrl [2021-11-25 20:16:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:16:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_isoc_init [2021-11-25 20:16:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_isoc_init [2021-11-25 20:16:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_init_controls [2021-11-25 20:16:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_init_controls [2021-11-25 20:16:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:16:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:16:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_init_controls [2021-11-25 20:16:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_init_controls [2021-11-25 20:16:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_set_state [2021-11-25 20:16:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_set_state [2021-11-25 20:16:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:16:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:16:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_start [2021-11-25 20:16:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_start [2021-11-25 20:16:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-25 20:16:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-25 20:16:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:16:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:16:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_read_bridge [2021-11-25 20:16:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_read_bridge [2021-11-25 20:16:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_stop [2021-11-25 20:16:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_stop [2021-11-25 20:16:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:16:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:16:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:16:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_isoc_nego [2021-11-25 20:16:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_isoc_nego [2021-11-25 20:16:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:16:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:16:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:16:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_init [2021-11-25 20:16:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_init [2021-11-25 20:16:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_probe [2021-11-25 20:16:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_probe [2021-11-25 20:16:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-25 20:16:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-25 20:16:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 20:16:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 20:16:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:16:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:16:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:16:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:16:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:16:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:16:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-25 20:16:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-25 20:16:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_reg_write_seq [2021-11-25 20:16:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_reg_write_seq [2021-11-25 20:16:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:16:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-25 20:16:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-25 20:16:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_10_4 [2021-11-25 20:16:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_10_4 [2021-11-25 20:16:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_start [2021-11-25 20:16:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_start [2021-11-25 20:16:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:16:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:16:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_s_ctrl [2021-11-25 20:16:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_s_ctrl [2021-11-25 20:16:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:16:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-25 20:16:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-25 20:16:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:16:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:16:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:16:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:16:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_init [2021-11-25 20:16:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_init [2021-11-25 20:16:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_read_sensor [2021-11-25 20:16:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_read_sensor [2021-11-25 20:16:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure vv6410_probe [2021-11-25 20:16:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure vv6410_probe [2021-11-25 20:16:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:16:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:16:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:16:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_stop [2021-11-25 20:16:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_stop [2021-11-25 20:16:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:16:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_stop [2021-11-25 20:16:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_stop [2021-11-25 20:16:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_probe [2021-11-25 20:16:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_probe [2021-11-25 20:16:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_stopN [2021-11-25 20:16:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_stopN [2021-11-25 20:16:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_sensor_finish [2021-11-25 20:16:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_sensor_finish [2021-11-25 20:16:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure hdcs_dump [2021-11-25 20:16:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure hdcs_dump [2021-11-25 20:16:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_dump [2021-11-25 20:16:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_dump [2021-11-25 20:16:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_custom [2021-11-25 20:16:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_custom [2021-11-25 20:16:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:16:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:16:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-25 20:16:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-25 20:16:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:16:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:16:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:16:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:16:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_s_ctrl [2021-11-25 20:16:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_s_ctrl [2021-11-25 20:16:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure st6422_init_controls [2021-11-25 20:16:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure st6422_init_controls [2021-11-25 20:16:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:16:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:16:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_write_bridge [2021-11-25 20:16:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_write_bridge [2021-11-25 20:16:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_init_class [2021-11-25 20:16:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_init_class [2021-11-25 20:16:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:16:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:16:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:16:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure sd_disconnect [2021-11-25 20:16:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_disconnect [2021-11-25 20:16:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:16:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:16:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure pb0100_start [2021-11-25 20:16:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pb0100_start [2021-11-25 20:16:10,203 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:16:10,208 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:16:16,652 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:16:59,847 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:17:00,164 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:17:01,501 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:17:01,502 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:17:01,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:17:01 BoogieIcfgContainer [2021-11-25 20:17:01,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:17:01,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:17:01,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:17:01,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:17:01,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:16:05" (1/3) ... [2021-11-25 20:17:01,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4807f2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:17:01, skipping insertion in model container [2021-11-25 20:17:01,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:08" (2/3) ... [2021-11-25 20:17:01,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4807f2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:17:01, skipping insertion in model container [2021-11-25 20:17:01,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:17:01" (3/3) ... [2021-11-25 20:17:01,517 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-25 20:17:01,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:17:01,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:17:01,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:17:01,594 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:17:01,594 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:17:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 1386 states, 864 states have (on average 1.3506944444444444) internal successors, (1167), 866 states have internal predecessors, (1167), 442 states have call successors, (442), 80 states have call predecessors, (442), 79 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) [2021-11-25 20:17:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-25 20:17:01,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:01,695 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:01,695 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:17:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash 962057894, now seen corresponding path program 1 times [2021-11-25 20:17:01,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:01,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844121986] [2021-11-25 20:17:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:01,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:17:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:17:02,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:17:02,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844121986] [2021-11-25 20:17:02,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844121986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:17:02,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:17:02,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:17:02,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656254514] [2021-11-25 20:17:02,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:17:02,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:17:02,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:17:02,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:17:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:02,913 INFO L87 Difference]: Start difference. First operand has 1386 states, 864 states have (on average 1.3506944444444444) internal successors, (1167), 866 states have internal predecessors, (1167), 442 states have call successors, (442), 80 states have call predecessors, (442), 79 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:05,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:06,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:09,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:14,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:17:15,514 INFO L93 Difference]: Finished difference Result 4033 states and 6014 transitions. [2021-11-25 20:17:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:17:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2021-11-25 20:17:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:17:15,566 INFO L225 Difference]: With dead ends: 4033 [2021-11-25 20:17:15,566 INFO L226 Difference]: Without dead ends: 2626 [2021-11-25 20:17:15,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:15,587 INFO L933 BasicCegarLoop]: 2125 mSDtfsCounter, 1898 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:17:15,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1901 Valid, 3819 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 670 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2021-11-25 20:17:15,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2021-11-25 20:17:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2622. [2021-11-25 20:17:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 1664 states have (on average 1.3455528846153846) internal successors, (2239), 1668 states have internal predecessors, (2239), 805 states have call successors, (805), 152 states have call predecessors, (805), 152 states have return successors, (808), 803 states have call predecessors, (808), 805 states have call successors, (808) [2021-11-25 20:17:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3852 transitions. [2021-11-25 20:17:15,858 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3852 transitions. Word has length 203 [2021-11-25 20:17:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:17:15,863 INFO L470 AbstractCegarLoop]: Abstraction has 2622 states and 3852 transitions. [2021-11-25 20:17:15,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3852 transitions. [2021-11-25 20:17:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-25 20:17:15,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:15,889 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:15,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:17:15,890 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:17:15,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:15,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1791540313, now seen corresponding path program 1 times [2021-11-25 20:17:15,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:15,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930932907] [2021-11-25 20:17:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:15,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:17:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:17:16,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:17:16,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930932907] [2021-11-25 20:17:16,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930932907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:17:16,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:17:16,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:17:16,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328188368] [2021-11-25 20:17:16,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:17:16,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:17:16,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:17:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:17:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:16,460 INFO L87 Difference]: Start difference. First operand 2622 states and 3852 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:18,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:20,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:22,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:26,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:29,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:17:30,215 INFO L93 Difference]: Finished difference Result 7520 states and 11040 transitions. [2021-11-25 20:17:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:17:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 206 [2021-11-25 20:17:30,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:17:30,269 INFO L225 Difference]: With dead ends: 7520 [2021-11-25 20:17:30,269 INFO L226 Difference]: Without dead ends: 4933 [2021-11-25 20:17:30,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:30,293 INFO L933 BasicCegarLoop]: 2050 mSDtfsCounter, 1711 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:17:30,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1714 Valid, 3695 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 661 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2021-11-25 20:17:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2021-11-25 20:17:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4927. [2021-11-25 20:17:30,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4927 states, 3116 states have (on average 1.3401797175866494) internal successors, (4176), 3126 states have internal predecessors, (4176), 1520 states have call successors, (1520), 290 states have call predecessors, (1520), 290 states have return successors, (1529), 1512 states have call predecessors, (1529), 1520 states have call successors, (1529) [2021-11-25 20:17:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 7225 transitions. [2021-11-25 20:17:30,633 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 7225 transitions. Word has length 206 [2021-11-25 20:17:30,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:17:30,634 INFO L470 AbstractCegarLoop]: Abstraction has 4927 states and 7225 transitions. [2021-11-25 20:17:30,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 7225 transitions. [2021-11-25 20:17:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-25 20:17:30,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:30,649 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:30,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:17:30,650 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:17:30,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:30,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1710613357, now seen corresponding path program 1 times [2021-11-25 20:17:30,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:30,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528637052] [2021-11-25 20:17:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:30,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:17:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:17:31,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:17:31,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528637052] [2021-11-25 20:17:31,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528637052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:17:31,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:17:31,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:17:31,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217414118] [2021-11-25 20:17:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:17:31,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:17:31,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:17:31,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:17:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:31,095 INFO L87 Difference]: Start difference. First operand 4927 states and 7225 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:17:33,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:34,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:38,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:39,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:43,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:17:45,955 INFO L93 Difference]: Finished difference Result 14569 states and 21347 transitions. [2021-11-25 20:17:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:17:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 218 [2021-11-25 20:17:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:17:46,046 INFO L225 Difference]: With dead ends: 14569 [2021-11-25 20:17:46,047 INFO L226 Difference]: Without dead ends: 9677 [2021-11-25 20:17:46,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:46,089 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 1851 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:17:46,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1853 Valid, 3736 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 679 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2021-11-25 20:17:46,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2021-11-25 20:17:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 9671. [2021-11-25 20:17:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9671 states, 6136 states have (on average 1.3370273794002607) internal successors, (8204), 6160 states have internal predecessors, (8204), 2954 states have call successors, (2954), 580 states have call predecessors, (2954), 580 states have return successors, (2971), 2934 states have call predecessors, (2971), 2954 states have call successors, (2971) [2021-11-25 20:17:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9671 states to 9671 states and 14129 transitions. [2021-11-25 20:17:46,684 INFO L78 Accepts]: Start accepts. Automaton has 9671 states and 14129 transitions. Word has length 218 [2021-11-25 20:17:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:17:46,686 INFO L470 AbstractCegarLoop]: Abstraction has 9671 states and 14129 transitions. [2021-11-25 20:17:46,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:17:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 9671 states and 14129 transitions. [2021-11-25 20:17:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-25 20:17:46,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:46,699 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:46,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:17:46,700 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:17:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash 993991232, now seen corresponding path program 1 times [2021-11-25 20:17:46,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:46,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612311325] [2021-11-25 20:17:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:46,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:17:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:17:47,178 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:17:47,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612311325] [2021-11-25 20:17:47,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612311325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:17:47,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:17:47,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:17:47,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115002672] [2021-11-25 20:17:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:17:47,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:17:47,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:17:47,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:17:47,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:47,182 INFO L87 Difference]: Start difference. First operand 9671 states and 14129 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:49,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:55,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:57,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:58,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:17:58,525 INFO L93 Difference]: Finished difference Result 28645 states and 41819 transitions. [2021-11-25 20:17:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:17:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 210 [2021-11-25 20:17:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:17:58,688 INFO L225 Difference]: With dead ends: 28645 [2021-11-25 20:17:58,689 INFO L226 Difference]: Without dead ends: 19009 [2021-11-25 20:17:58,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:58,762 INFO L933 BasicCegarLoop]: 2124 mSDtfsCounter, 1849 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:17:58,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1852 Valid, 3768 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-11-25 20:17:58,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19009 states. [2021-11-25 20:17:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19009 to 19003. [2021-11-25 20:17:59,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19003 states, 12088 states have (on average 1.3328921244209133) internal successors, (16112), 12140 states have internal predecessors, (16112), 5754 states have call successors, (5754), 1160 states have call predecessors, (5754), 1160 states have return successors, (5791), 5710 states have call predecessors, (5791), 5754 states have call successors, (5791) [2021-11-25 20:17:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19003 states to 19003 states and 27657 transitions. [2021-11-25 20:17:59,991 INFO L78 Accepts]: Start accepts. Automaton has 19003 states and 27657 transitions. Word has length 210 [2021-11-25 20:17:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:17:59,992 INFO L470 AbstractCegarLoop]: Abstraction has 19003 states and 27657 transitions. [2021-11-25 20:17:59,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:17:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 19003 states and 27657 transitions. [2021-11-25 20:18:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-25 20:18:00,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:00,005 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:00,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:18:00,005 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:00,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:00,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1129875642, now seen corresponding path program 1 times [2021-11-25 20:18:00,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:00,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507708665] [2021-11-25 20:18:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:00,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:18:00,426 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:00,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507708665] [2021-11-25 20:18:00,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507708665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:00,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:00,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:00,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845689291] [2021-11-25 20:18:00,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:00,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:00,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:00,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:00,432 INFO L87 Difference]: Start difference. First operand 19003 states and 27657 transitions. 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:18:02,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:05,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:08,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:14,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:15,031 INFO L93 Difference]: Finished difference Result 56185 states and 81699 transitions. [2021-11-25 20:18:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:15,031 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 219 [2021-11-25 20:18:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:15,281 INFO L225 Difference]: With dead ends: 56185 [2021-11-25 20:18:15,282 INFO L226 Difference]: Without dead ends: 37217 [2021-11-25 20:18:15,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:15,388 INFO L933 BasicCegarLoop]: 2168 mSDtfsCounter, 1830 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:15,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1834 Valid, 3814 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 711 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2021-11-25 20:18:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37217 states. [2021-11-25 20:18:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37217 to 37211. [2021-11-25 20:18:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37211 states, 23736 states have (on average 1.3282777216043142) internal successors, (31528), 23844 states have internal predecessors, (31528), 11154 states have call successors, (11154), 2320 states have call predecessors, (11154), 2320 states have return successors, (11247), 11062 states have call predecessors, (11247), 11154 states have call successors, (11247) [2021-11-25 20:18:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37211 states to 37211 states and 53929 transitions. [2021-11-25 20:18:18,149 INFO L78 Accepts]: Start accepts. Automaton has 37211 states and 53929 transitions. Word has length 219 [2021-11-25 20:18:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:18,150 INFO L470 AbstractCegarLoop]: Abstraction has 37211 states and 53929 transitions. [2021-11-25 20:18:18,150 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:18:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 37211 states and 53929 transitions. [2021-11-25 20:18:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-25 20:18:18,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:18,167 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:18,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:18:18,167 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:18,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:18,168 INFO L85 PathProgramCache]: Analyzing trace with hash 324524465, now seen corresponding path program 1 times [2021-11-25 20:18:18,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:18,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970573737] [2021-11-25 20:18:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:18,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-25 20:18:18,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:18,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970573737] [2021-11-25 20:18:18,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970573737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:18,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:18,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:18,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606129688] [2021-11-25 20:18:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:18,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:18,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:18,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:18,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:18,808 INFO L87 Difference]: Start difference. First operand 37211 states and 53929 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:18:20,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:29,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:31,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:31,730 INFO L93 Difference]: Finished difference Result 107379 states and 155589 transitions. [2021-11-25 20:18:31,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:31,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 218 [2021-11-25 20:18:31,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:32,371 INFO L225 Difference]: With dead ends: 107379 [2021-11-25 20:18:32,372 INFO L226 Difference]: Without dead ends: 70203 [2021-11-25 20:18:32,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:32,567 INFO L933 BasicCegarLoop]: 2049 mSDtfsCounter, 1810 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:32,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1813 Valid, 3693 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 665 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-11-25 20:18:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70203 states. [2021-11-25 20:18:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70203 to 70137. [2021-11-25 20:18:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70137 states, 44986 states have (on average 1.3255679544747254) internal successors, (59632), 45266 states have internal predecessors, (59632), 20743 states have call successors, (20743), 4407 states have call predecessors, (20743), 4407 states have return successors, (20920), 20495 states have call predecessors, (20920), 20743 states have call successors, (20920) [2021-11-25 20:18:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70137 states to 70137 states and 101295 transitions. [2021-11-25 20:18:36,543 INFO L78 Accepts]: Start accepts. Automaton has 70137 states and 101295 transitions. Word has length 218 [2021-11-25 20:18:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:36,544 INFO L470 AbstractCegarLoop]: Abstraction has 70137 states and 101295 transitions. [2021-11-25 20:18:36,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 20:18:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 70137 states and 101295 transitions. [2021-11-25 20:18:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-25 20:18:36,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:36,570 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2021-11-25 20:18:36,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:18:36,571 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1588436235, now seen corresponding path program 1 times [2021-11-25 20:18:36,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:36,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206759531] [2021-11-25 20:18:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:36,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-25 20:18:36,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:36,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206759531] [2021-11-25 20:18:36,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206759531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:36,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:36,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:36,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928386326] [2021-11-25 20:18:36,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:36,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:36,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:36,960 INFO L87 Difference]: Start difference. First operand 70137 states and 101295 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:18:39,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:40,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:44,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:48,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:52,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:53,932 INFO L93 Difference]: Finished difference Result 142388 states and 205192 transitions. [2021-11-25 20:18:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 223 [2021-11-25 20:18:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:54,463 INFO L225 Difference]: With dead ends: 142388 [2021-11-25 20:18:54,463 INFO L226 Difference]: Without dead ends: 72286 [2021-11-25 20:18:54,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:54,965 INFO L933 BasicCegarLoop]: 1953 mSDtfsCounter, 1415 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:54,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 3584 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 656 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2021-11-25 20:18:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72286 states. [2021-11-25 20:18:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72286 to 72278. [2021-11-25 20:18:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72278 states, 46350 states have (on average 1.3226105717367853) internal successors, (61303), 46632 states have internal predecessors, (61303), 21222 states have call successors, (21222), 4705 states have call predecessors, (21222), 4705 states have return successors, (21400), 20972 states have call predecessors, (21400), 21222 states have call successors, (21400) [2021-11-25 20:18:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72278 states to 72278 states and 103925 transitions. [2021-11-25 20:18:58,488 INFO L78 Accepts]: Start accepts. Automaton has 72278 states and 103925 transitions. Word has length 223 [2021-11-25 20:18:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:58,488 INFO L470 AbstractCegarLoop]: Abstraction has 72278 states and 103925 transitions. [2021-11-25 20:18:58,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:18:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 72278 states and 103925 transitions. [2021-11-25 20:18:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 20:18:58,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:58,504 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2021-11-25 20:18:58,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:18:58,505 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:58,506 INFO L85 PathProgramCache]: Analyzing trace with hash 697966331, now seen corresponding path program 1 times [2021-11-25 20:18:58,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:58,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877169565] [2021-11-25 20:18:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:58,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-25 20:18:58,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:58,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877169565] [2021-11-25 20:18:58,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877169565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:58,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:58,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:58,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046060100] [2021-11-25 20:18:58,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:58,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:58,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:58,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:58,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:58,901 INFO L87 Difference]: Start difference. First operand 72278 states and 103925 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:19:00,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:04,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:15,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:16,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:16,856 INFO L93 Difference]: Finished difference Result 176634 states and 253802 transitions. [2021-11-25 20:19:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:16,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 243 [2021-11-25 20:19:16,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:17,779 INFO L225 Difference]: With dead ends: 176634 [2021-11-25 20:19:17,779 INFO L226 Difference]: Without dead ends: 104391 [2021-11-25 20:19:18,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:18,094 INFO L933 BasicCegarLoop]: 2761 mSDtfsCounter, 1806 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:18,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1809 Valid, 4427 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 804 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2021-11-25 20:19:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104391 states. [2021-11-25 20:19:22,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104391 to 104357. [2021-11-25 20:19:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104357 states, 67056 states have (on average 1.3212986160820805) internal successors, (88601), 67476 states have internal predecessors, (88601), 30484 states have call successors, (30484), 6816 states have call predecessors, (30484), 6816 states have return successors, (30745), 30112 states have call predecessors, (30745), 30484 states have call successors, (30745) [2021-11-25 20:19:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104357 states to 104357 states and 149830 transitions. [2021-11-25 20:19:23,468 INFO L78 Accepts]: Start accepts. Automaton has 104357 states and 149830 transitions. Word has length 243 [2021-11-25 20:19:23,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:23,469 INFO L470 AbstractCegarLoop]: Abstraction has 104357 states and 149830 transitions. [2021-11-25 20:19:23,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:19:23,470 INFO L276 IsEmpty]: Start isEmpty. Operand 104357 states and 149830 transitions. [2021-11-25 20:19:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-25 20:19:23,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:23,509 INFO L514 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:23,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:19:23,509 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:23,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1743627721, now seen corresponding path program 1 times [2021-11-25 20:19:23,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:23,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251712472] [2021-11-25 20:19:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:23,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-11-25 20:19:23,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:23,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251712472] [2021-11-25 20:19:23,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251712472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:23,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:23,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:23,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672547637] [2021-11-25 20:19:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:23,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:23,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:23,947 INFO L87 Difference]: Start difference. First operand 104357 states and 149830 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:19:26,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:28,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:32,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:43,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:45,332 INFO L93 Difference]: Finished difference Result 255141 states and 366370 transitions. [2021-11-25 20:19:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:45,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 269 [2021-11-25 20:19:45,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:46,486 INFO L225 Difference]: With dead ends: 255141 [2021-11-25 20:19:46,487 INFO L226 Difference]: Without dead ends: 151345 [2021-11-25 20:19:46,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:46,925 INFO L933 BasicCegarLoop]: 3112 mSDtfsCounter, 1734 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:46,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1737 Valid, 4755 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 927 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2021-11-25 20:19:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151345 states. [2021-11-25 20:19:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151345 to 151247. [2021-11-25 20:19:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151247 states, 97234 states have (on average 1.3210913877861654) internal successors, (128455), 97888 states have internal predecessors, (128455), 44094 states have call successors, (44094), 9918 states have call predecessors, (44094), 9918 states have return successors, (44475), 43488 states have call predecessors, (44475), 44094 states have call successors, (44475) [2021-11-25 20:19:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151247 states to 151247 states and 217024 transitions. [2021-11-25 20:19:54,050 INFO L78 Accepts]: Start accepts. Automaton has 151247 states and 217024 transitions. Word has length 269 [2021-11-25 20:19:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:54,051 INFO L470 AbstractCegarLoop]: Abstraction has 151247 states and 217024 transitions. [2021-11-25 20:19:54,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:19:54,051 INFO L276 IsEmpty]: Start isEmpty. Operand 151247 states and 217024 transitions. [2021-11-25 20:19:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-25 20:19:54,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:54,087 INFO L514 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 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] [2021-11-25 20:19:54,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:19:54,088 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:54,089 INFO L85 PathProgramCache]: Analyzing trace with hash -29258224, now seen corresponding path program 1 times [2021-11-25 20:19:54,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:54,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419467228] [2021-11-25 20:19:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:54,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2021-11-25 20:19:54,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:54,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419467228] [2021-11-25 20:19:54,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419467228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:54,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:54,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:54,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753253095] [2021-11-25 20:19:54,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:54,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:54,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:54,536 INFO L87 Difference]: Start difference. First operand 151247 states and 217024 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 20:19:56,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:59,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:20:01,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:03,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:20:05,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []