./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH --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 c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:18:52,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:18:52,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:18:52,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:18:52,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:18:52,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:18:52,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:18:52,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:18:52,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:18:52,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:18:52,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:18:52,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:18:52,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:18:52,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:18:52,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:18:52,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:18:52,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:18:52,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:18:52,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:18:52,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:18:52,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:18:52,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:18:52,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:18:52,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:18:52,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:18:52,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:18:52,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:18:52,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:18:52,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:18:52,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:18:52,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:18:52,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:18:52,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:18:52,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:18:52,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:18:52,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:18:52,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:18:52,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:18:52,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:18:52,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:18:52,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:18:52,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:18:52,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:18:52,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:18:52,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:18:52,512 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:18:52,512 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:18:52,513 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:18:52,513 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:18:52,513 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:18:52,513 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:18:52,514 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:18:52,520 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:18:52,521 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:18:52,521 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:18:52,521 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:18:52,522 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:18:52,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:18:52,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:18:52,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:18:52,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:18:52,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:18:52,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:18:52,524 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:18:52,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:18:52,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:18:52,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:18:52,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:18:52,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:18:52,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:18:52,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:18:52,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:18:52,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:18:52,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:18:52,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:18:52,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:18:52,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:18:52,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:18:52,528 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_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d [2021-11-03 05:18:52,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:18:52,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:18:52,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:18:52,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:18:52,911 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:18:52,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-03 05:18:52,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/a0caf7770/aca7b0e85d5e4fa6be714382df4a899f/FLAG4b3d8bcd6 [2021-11-03 05:18:53,839 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:18:53,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-03 05:18:53,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/a0caf7770/aca7b0e85d5e4fa6be714382df4a899f/FLAG4b3d8bcd6 [2021-11-03 05:18:54,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/a0caf7770/aca7b0e85d5e4fa6be714382df4a899f [2021-11-03 05:18:54,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:18:54,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:18:54,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:18:54,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:18:54,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:18:54,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:18:54" (1/1) ... [2021-11-03 05:18:54,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a248d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:18:54, skipping insertion in model container [2021-11-03 05:18:54,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:18:54" (1/1) ... [2021-11-03 05:18:54,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:18:54,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:18:54,866 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-03 05:18:54,874 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-03 05:18:54,900 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:18:54,906 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:18:55,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:55,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:56,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:18:56,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:18:56,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:18:56,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:18:56,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:18:56,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:18:56,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:18:56,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:18:56,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:18:56,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:18:56,525 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:18:56,562 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:18:56,569 INFO L168 Benchmark]: Toolchain (without parser) took 2203.48 ms. Allocated memory was 102.8 MB in the beginning and 157.3 MB in the end (delta: 54.5 MB). Free memory was 75.9 MB in the beginning and 123.6 MB in the end (delta: -47.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:18:56,570 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:18:56,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2200.56 ms. Allocated memory was 102.8 MB in the beginning and 157.3 MB in the end (delta: 54.5 MB). Free memory was 75.6 MB in the beginning and 123.6 MB in the end (delta: -48.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:18:56,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2200.56 ms. Allocated memory was 102.8 MB in the beginning and 157.3 MB in the end (delta: 54.5 MB). Free memory was 75.6 MB in the beginning and 123.6 MB in the end (delta: -48.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH --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 c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:18:58,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:18:58,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:18:58,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:18:58,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:18:58,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:18:58,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:18:58,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:18:58,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:18:58,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:18:58,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:18:58,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:18:58,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:18:58,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:18:58,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:18:58,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:18:58,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:18:58,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:18:58,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:18:58,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:18:58,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:18:58,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:18:58,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:18:58,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:18:58,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:18:58,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:18:58,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:18:58,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:18:58,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:18:58,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:18:58,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:18:58,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:18:58,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:18:58,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:18:58,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:18:58,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:18:58,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:18:58,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:18:58,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:18:58,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:18:58,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:18:58,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:18:58,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:18:58,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:18:58,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:18:58,884 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:18:58,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:18:58,884 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:18:58,884 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:18:58,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:18:58,885 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:18:58,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:18:58,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:18:58,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:18:58,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:18:58,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:18:58,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:18:58,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:18:58,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:18:58,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:18:58,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:18:58,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:18:58,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:18:58,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:18:58,891 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:18:58,891 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:18:58,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:18:58,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:18:58,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:18:58,892 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d [2021-11-03 05:18:59,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:18:59,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:18:59,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:18:59,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:18:59,323 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:18:59,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-03 05:18:59,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/af3908f32/8271e68aa0cd42da9714df2edaa76176/FLAG0834f8c28 [2021-11-03 05:19:00,314 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:19:00,319 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-03 05:19:00,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/af3908f32/8271e68aa0cd42da9714df2edaa76176/FLAG0834f8c28 [2021-11-03 05:19:00,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/data/af3908f32/8271e68aa0cd42da9714df2edaa76176 [2021-11-03 05:19:00,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:19:00,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:19:00,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:00,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:19:00,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:19:00,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:00" (1/1) ... [2021-11-03 05:19:00,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bfbf7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:00, skipping insertion in model container [2021-11-03 05:19:00,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:00" (1/1) ... [2021-11-03 05:19:00,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:19:00,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:01,215 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-03 05:19:01,224 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-03 05:19:01,257 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:01,270 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:02,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,320 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:02,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:02,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:02,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:02,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:02,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:02,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:02,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:02,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:02,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:02,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:02,930 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:03,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:03,286 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:19:03,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:03,402 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-03 05:19:03,403 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-03 05:19:03,405 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:03,405 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:03,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:03,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:03,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:03,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:03,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:03,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:03,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:03,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:03,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:03,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:03,575 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:03,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:03,774 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:19:03,787 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-03 05:19:03,787 WARN L228 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_25713e73-93bf-485d-a735-afaa7e9fc336/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-03 05:19:03,789 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:03,789 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:03,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:03,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:03,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:03,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:03,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:03,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:03,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:03,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:03,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:03,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:03,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:03,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:03,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:04,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:04,322 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:19:04,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04 WrapperNode [2021-11-03 05:19:04,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:04,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:04,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:19:04,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:19:04,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:04,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:19:04,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:19:04,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:19:04,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:19:04,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:19:04,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:19:04,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:19:04,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:04,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:19:04,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:19:04,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:19:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:19:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:19:18,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:19:18,907 INFO L299 CfgBuilder]: Removed 64 assume(true) statements. [2021-11-03 05:19:18,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:18 BoogieIcfgContainer [2021-11-03 05:19:18,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:19:18,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:19:18,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:19:18,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:19:18,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:19:00" (1/3) ... [2021-11-03 05:19:18,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76186453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:18, skipping insertion in model container [2021-11-03 05:19:18,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04" (2/3) ... [2021-11-03 05:19:18,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76186453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:18, skipping insertion in model container [2021-11-03 05:19:18,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:18" (3/3) ... [2021-11-03 05:19:18,922 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness.i [2021-11-03 05:19:18,928 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:19:18,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 05:19:18,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:19:18,996 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 [2021-11-03 05:19:18,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 05:19:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 95 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 05:19:19,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:19,021 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:19,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:19:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1013887435, now seen corresponding path program 1 times [2021-11-03 05:19:19,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:19,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408569629] [2021-11-03 05:19:19,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:19,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:19,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:19,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:19,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:19:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:23,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:19:23,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:23,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:23,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:23,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408569629] [2021-11-03 05:19:23,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408569629] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:23,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:23,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:19:23,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744321512] [2021-11-03 05:19:23,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:19:23,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:23,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:19:23,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:19:23,723 INFO L87 Difference]: Start difference. First operand has 96 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 95 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:23,759 INFO L93 Difference]: Finished difference Result 188 states and 247 transitions. [2021-11-03 05:19:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:19:23,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-03 05:19:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:23,771 INFO L225 Difference]: With dead ends: 188 [2021-11-03 05:19:23,772 INFO L226 Difference]: Without dead ends: 90 [2021-11-03 05:19:23,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:19:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-03 05:19:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-03 05:19:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 89 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2021-11-03 05:19:23,827 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 35 [2021-11-03 05:19:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:23,828 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2021-11-03 05:19:23,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2021-11-03 05:19:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 05:19:23,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:23,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:23,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:24,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:24,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:19:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1082279499, now seen corresponding path program 1 times [2021-11-03 05:19:24,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:24,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399143257] [2021-11-03 05:19:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:24,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:24,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:24,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:24,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:19:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:28,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:19:28,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:28,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:28,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:28,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399143257] [2021-11-03 05:19:28,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399143257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:28,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:28,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:19:28,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465422992] [2021-11-03 05:19:28,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:19:28,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:19:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:28,628 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:28,674 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2021-11-03 05:19:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:19:28,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-03 05:19:28,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:28,676 INFO L225 Difference]: With dead ends: 140 [2021-11-03 05:19:28,676 INFO L226 Difference]: Without dead ends: 90 [2021-11-03 05:19:28,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-03 05:19:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-03 05:19:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 89 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2021-11-03 05:19:28,685 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 35 [2021-11-03 05:19:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:28,685 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2021-11-03 05:19:28,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2021-11-03 05:19:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:19:28,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:28,687 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:28,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:28,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:28,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:19:28,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:28,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1002728890, now seen corresponding path program 1 times [2021-11-03 05:19:28,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:28,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120204390] [2021-11-03 05:19:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:28,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:28,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:28,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:19:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:33,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:19:33,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:33,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:33,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:33,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:33,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120204390] [2021-11-03 05:19:33,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120204390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:33,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:33,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:19:33,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980109094] [2021-11-03 05:19:33,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:19:33,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:19:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:19:33,730 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:34,401 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2021-11-03 05:19:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:19:34,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 05:19:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:34,403 INFO L225 Difference]: With dead ends: 133 [2021-11-03 05:19:34,403 INFO L226 Difference]: Without dead ends: 129 [2021-11-03 05:19:34,404 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:19:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-03 05:19:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 98. [2021-11-03 05:19:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 97 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2021-11-03 05:19:34,413 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 37 [2021-11-03 05:19:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:34,414 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2021-11-03 05:19:34,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2021-11-03 05:19:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:19:34,415 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:34,416 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:34,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:34,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:34,631 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:19:34,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:34,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1300883710, now seen corresponding path program 1 times [2021-11-03 05:19:34,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:34,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586891972] [2021-11-03 05:19:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:34,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:34,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:34,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:34,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:19:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:53,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 05:19:53,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:53,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 12 [2021-11-03 05:19:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:54,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:54,359 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:19:54,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 17 [2021-11-03 05:19:54,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-03 05:19:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:54,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:54,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586891972] [2021-11-03 05:19:54,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586891972] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:54,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:54,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 14 [2021-11-03 05:19:54,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566644607] [2021-11-03 05:19:54,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 05:19:54,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:54,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 05:19:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:19:54,517 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:59,687 INFO L93 Difference]: Finished difference Result 161 states and 184 transitions. [2021-11-03 05:19:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:19:59,689 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-03 05:19:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:59,691 INFO L225 Difference]: With dead ends: 161 [2021-11-03 05:19:59,691 INFO L226 Difference]: Without dead ends: 105 [2021-11-03 05:19:59,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=201, Invalid=449, Unknown=0, NotChecked=0, Total=650 [2021-11-03 05:19:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-03 05:19:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 100. [2021-11-03 05:19:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 99 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2021-11-03 05:19:59,702 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 41 [2021-11-03 05:19:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:59,702 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-11-03 05:19:59,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2021-11-03 05:19:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:19:59,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:59,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:59,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:59,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:59,910 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:19:59,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1980942080, now seen corresponding path program 1 times [2021-11-03 05:19:59,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:59,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996833328] [2021-11-03 05:19:59,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:59,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:59,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:59,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:59,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713e73-93bf-485d-a735-afaa7e9fc336/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process