./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_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_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/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_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/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_ecb126f9-9587-4d65-aee1-be795f53609c/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:23:01,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:23:01,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:23:01,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:23:01,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:23:01,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:23:01,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:23:01,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:23:01,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:23:01,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:23:01,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:23:01,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:23:01,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:23:01,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:23:01,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:23:01,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:23:01,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:23:01,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:23:01,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:23:01,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:23:01,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:23:01,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:23:01,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:23:01,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:23:01,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:23:01,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:23:01,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:23:01,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:23:01,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:23:01,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:23:01,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:23:01,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:23:01,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:23:01,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:23:01,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:23:01,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:23:01,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:23:01,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:23:01,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:23:01,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:23:01,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:23:01,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:23:01,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:23:01,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:23:01,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:23:01,438 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:23:01,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:23:01,439 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:23:01,439 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:23:01,439 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:23:01,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:23:01,440 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:23:01,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:23:01,441 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:23:01,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:23:01,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:23:01,442 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:23:01,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:23:01,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:23:01,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:23:01,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:23:01,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:23:01,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:23:01,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:23:01,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:23:01,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:23:01,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:23:01,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:23:01,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:23:01,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:01,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:23:01,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:23:01,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:23:01,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:23:01,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:23:01,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:23:01,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:23:01,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:23:01,451 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_ecb126f9-9587-4d65-aee1-be795f53609c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2021-11-03 05:23:01,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:23:01,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:23:01,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:23:01,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:23:01,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:23:01,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-03 05:23:01,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/8b8021a02/fe3c3aa272374271a06f40e2abca80d0/FLAG83b91ab22 [2021-11-03 05:23:03,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:23:03,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-03 05:23:03,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/8b8021a02/fe3c3aa272374271a06f40e2abca80d0/FLAG83b91ab22 [2021-11-03 05:23:03,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/8b8021a02/fe3c3aa272374271a06f40e2abca80d0 [2021-11-03 05:23:03,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:23:03,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:23:03,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:03,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:23:03,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:23:03,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:03" (1/1) ... [2021-11-03 05:23:03,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a660265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:03, skipping insertion in model container [2021-11-03 05:23:03,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:03" (1/1) ... [2021-11-03 05:23:03,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:23:03,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:04,000 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-03 05:23:04,010 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-03 05:23:04,038 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:23:04,047 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:23:05,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:05,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:23:05,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:23:05,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:23:05,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:23:05,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:23:05,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:23:05,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:23:05,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:23:05,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:23:05,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:23:05,711 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:23:05,728 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:23:05,734 INFO L168 Benchmark]: Toolchain (without parser) took 2219.85 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 44.8 MB in the beginning and 64.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:23:05,735 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 59.7 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:23:05,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2217.11 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 44.5 MB in the beginning and 65.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:23:05,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 59.7 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2217.11 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 44.5 MB in the beginning and 65.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 16.9 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_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/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_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/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_ecb126f9-9587-4d65-aee1-be795f53609c/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:23:08,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:23:08,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:23:08,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:23:08,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:23:08,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:23:08,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:23:08,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:23:08,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:23:08,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:23:08,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:23:08,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:23:08,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:23:08,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:23:08,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:23:08,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:23:08,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:23:08,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:23:08,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:23:08,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:23:08,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:23:08,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:23:08,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:23:08,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:23:08,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:23:08,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:23:08,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:23:08,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:23:08,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:23:08,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:23:08,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:23:08,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:23:08,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:23:08,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:23:08,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:23:08,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:23:08,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:23:08,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:23:08,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:23:08,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:23:08,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:23:08,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:23:08,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:23:08,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:23:08,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:23:08,189 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:23:08,190 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:23:08,190 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:23:08,190 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:23:08,191 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:23:08,191 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:23:08,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:23:08,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:23:08,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:23:08,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:23:08,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:23:08,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:23:08,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:23:08,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:23:08,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:23:08,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:23:08,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:23:08,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:23:08,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:23:08,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:23:08,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:08,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:23:08,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:23:08,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:23:08,198 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:23:08,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:23:08,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:23:08,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:23:08,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:23:08,199 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_ecb126f9-9587-4d65-aee1-be795f53609c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2021-11-03 05:23:08,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:23:08,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:23:08,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:23:08,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:23:08,615 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:23:08,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-03 05:23:08,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/a0ac8b3fe/ae9227d3456c4905bd275ea1c919a999/FLAG1c0cbc152 [2021-11-03 05:23:09,641 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:23:09,643 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-03 05:23:09,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/a0ac8b3fe/ae9227d3456c4905bd275ea1c919a999/FLAG1c0cbc152 [2021-11-03 05:23:10,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/data/a0ac8b3fe/ae9227d3456c4905bd275ea1c919a999 [2021-11-03 05:23:10,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:23:10,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:23:10,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:10,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:23:10,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:23:10,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:10" (1/1) ... [2021-11-03 05:23:10,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bae578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:10, skipping insertion in model container [2021-11-03 05:23:10,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:10" (1/1) ... [2021-11-03 05:23:10,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:23:10,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:10,628 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-03 05:23:10,635 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-03 05:23:10,661 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:23:10,671 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:23:11,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,843 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,844 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:11,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:12,422 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:23:12,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:23:12,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:23:12,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:23:12,433 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:23:12,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:23:12,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:23:12,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:23:12,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:23:12,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:23:12,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:23:12,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:12,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:13,078 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:23:13,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:13,150 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-03 05:23:13,151 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-03 05:23:13,152 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:23:13,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:23:13,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:23:13,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:23:13,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:23:13,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:23:13,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:23:13,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:23:13,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:23:13,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:23:13,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:23:13,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:23:13,314 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:23:13,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:13,503 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:23:13,530 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-03 05:23:13,530 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_ecb126f9-9587-4d65-aee1-be795f53609c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-03 05:23:13,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:23:13,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:23:13,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:23:13,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:23:13,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:23:13,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:23:13,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:23:13,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:23:13,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:23:13,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:23:13,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:23:13,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:23:13,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:23:13,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:23:13,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:14,205 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:23:14,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14 WrapperNode [2021-11-03 05:23:14,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:14,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:14,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:23:14,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:23:14,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:14,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:23:14,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:23:14,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:23:14,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:23:14,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:23:14,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:23:14,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:23:14,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (1/1) ... [2021-11-03 05:23:14,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:14,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:23:14,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:23:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2021-11-03 05:23:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:23:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:23:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:23:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:23:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:23:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:23:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:23:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:23:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:23:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:23:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:23:29,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:23:29,597 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-03 05:23:29,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:29 BoogieIcfgContainer [2021-11-03 05:23:29,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:23:29,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:23:29,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:23:29,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:23:29,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:23:10" (1/3) ... [2021-11-03 05:23:29,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ede09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:29, skipping insertion in model container [2021-11-03 05:23:29,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:14" (2/3) ... [2021-11-03 05:23:29,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ede09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:29, skipping insertion in model container [2021-11-03 05:23:29,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:29" (3/3) ... [2021-11-03 05:23:29,613 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2021-11-03 05:23:29,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:23:29,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-03 05:23:29,687 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:23:29,693 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 05:23:29,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-03 05:23:29,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 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 05:23:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 05:23:29,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:29,722 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] [2021-11-03 05:23:29,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:23:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash 733514216, now seen corresponding path program 1 times [2021-11-03 05:23:29,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:29,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841557139] [2021-11-03 05:23:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:29,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:29,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:29,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:29,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:23:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:34,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:23:34,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:34,388 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 05:23:34,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:34,662 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 05:23:34,663 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:23:34,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841557139] [2021-11-03 05:23:34,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841557139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:34,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:34,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:23:34,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128331562] [2021-11-03 05:23:34,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:23:34,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:23:34,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:23:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:23:34,713 INFO L87 Difference]: Start difference. First operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 05:23:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:34,746 INFO L93 Difference]: Finished difference Result 368 states and 511 transitions. [2021-11-03 05:23:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:23:34,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-11-03 05:23:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:34,758 INFO L225 Difference]: With dead ends: 368 [2021-11-03 05:23:34,759 INFO L226 Difference]: Without dead ends: 181 [2021-11-03 05:23:34,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 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 05:23:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-03 05:23:34,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-03 05:23:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3588235294117648) internal successors, (231), 180 states have internal predecessors, (231), 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 05:23:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-11-03 05:23:34,845 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 39 [2021-11-03 05:23:34,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:34,846 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-11-03 05:23:34,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 05:23:34,846 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-11-03 05:23:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 05:23:34,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:34,849 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] [2021-11-03 05:23:34,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:23:35,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:23:35,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:23:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash 699508844, now seen corresponding path program 1 times [2021-11-03 05:23:35,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:35,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815000429] [2021-11-03 05:23:35,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:35,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:35,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:35,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:35,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:23:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:39,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:23:39,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:39,773 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 05:23:39,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:39,987 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 05:23:39,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:23:39,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815000429] [2021-11-03 05:23:39,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815000429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:39,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:39,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:23:39,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722085864] [2021-11-03 05:23:39,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:23:39,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:23:39,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:23:39,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:23:39,992 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:23:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:40,352 INFO L93 Difference]: Finished difference Result 336 states and 428 transitions. [2021-11-03 05:23:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:23:40,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2021-11-03 05:23:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:40,355 INFO L225 Difference]: With dead ends: 336 [2021-11-03 05:23:40,356 INFO L226 Difference]: Without dead ends: 181 [2021-11-03 05:23:40,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:23:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-03 05:23:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-03 05:23:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 180 states have internal predecessors, (228), 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 05:23:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2021-11-03 05:23:40,378 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 39 [2021-11-03 05:23:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:40,379 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2021-11-03 05:23:40,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:23:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2021-11-03 05:23:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 05:23:40,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:40,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:40,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:40,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:23:40,606 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:23:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1277536330, now seen corresponding path program 1 times [2021-11-03 05:23:40,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:40,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690350091] [2021-11-03 05:23:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:40,615 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:40,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:40,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:23:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:44,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:23:44,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:45,153 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 05:23:45,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:45,362 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 05:23:45,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:23:45,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690350091] [2021-11-03 05:23:45,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690350091] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:45,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:45,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:23:45,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536529014] [2021-11-03 05:23:45,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:23:45,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:23:45,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:23:45,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:23:45,365 INFO L87 Difference]: Start difference. First operand 181 states and 228 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 05:23:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:45,828 INFO L93 Difference]: Finished difference Result 397 states and 508 transitions. [2021-11-03 05:23:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:23:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2021-11-03 05:23:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:45,832 INFO L225 Difference]: With dead ends: 397 [2021-11-03 05:23:45,832 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 05:23:45,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:23:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 05:23:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2021-11-03 05:23:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 192 states have internal predecessors, (240), 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 05:23:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2021-11-03 05:23:45,853 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 51 [2021-11-03 05:23:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:45,853 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2021-11-03 05:23:45,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 05:23:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2021-11-03 05:23:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 05:23:45,856 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:45,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:45,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:46,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:23:46,073 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:23:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1671903116, now seen corresponding path program 1 times [2021-11-03 05:23:46,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:46,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138948117] [2021-11-03 05:23:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:46,078 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:46,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:46,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:46,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:23:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:50,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:23:50,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:50,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:23:51,112 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 05:23:51,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:51,473 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 40 treesize of output 34 [2021-11-03 05:23:51,772 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 05:23:51,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:23:51,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138948117] [2021-11-03 05:23:51,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138948117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:51,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:51,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:23:51,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669314954] [2021-11-03 05:23:51,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:23:51,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:23:51,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:23:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:23:51,776 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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 05:23:58,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:58,853 INFO L93 Difference]: Finished difference Result 420 states and 528 transitions. [2021-11-03 05:23:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:23:58,854 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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 51 [2021-11-03 05:23:58,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:58,857 INFO L225 Difference]: With dead ends: 420 [2021-11-03 05:23:58,857 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 05:23:58,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:23:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 05:23:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 196. [2021-11-03 05:23:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 185 states have (on average 1.318918918918919) internal successors, (244), 195 states have internal predecessors, (244), 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 05:23:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 244 transitions. [2021-11-03 05:23:58,879 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 244 transitions. Word has length 51 [2021-11-03 05:23:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:58,880 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 244 transitions. [2021-11-03 05:23:58,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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 05:23:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 244 transitions. [2021-11-03 05:23:58,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:23:58,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:58,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:58,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:59,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:23:59,098 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:23:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 325189425, now seen corresponding path program 1 times [2021-11-03 05:23:59,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:23:59,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493474608] [2021-11-03 05:23:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:59,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:23:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:23:59,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:23:59,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:24:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:24:03,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:24:03,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:24:03,781 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:24:03,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:24:04,005 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 05:24:04,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:24:04,573 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 05:24:04,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:24:04,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493474608] [2021-11-03 05:24:04,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493474608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:24:04,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:24:04,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:24:04,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475293825] [2021-11-03 05:24:04,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:24:04,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:24:04,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:24:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:24:04,575 INFO L87 Difference]: Start difference. First operand 196 states and 244 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 05:24:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:24:13,403 INFO L93 Difference]: Finished difference Result 592 states and 733 transitions. [2021-11-03 05:24:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:24:13,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 58 [2021-11-03 05:24:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:24:13,410 INFO L225 Difference]: With dead ends: 592 [2021-11-03 05:24:13,410 INFO L226 Difference]: Without dead ends: 416 [2021-11-03 05:24:13,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:24:13,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-03 05:24:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 238. [2021-11-03 05:24:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 227 states have (on average 1.3127753303964758) internal successors, (298), 237 states have internal predecessors, (298), 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 05:24:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2021-11-03 05:24:13,429 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 58 [2021-11-03 05:24:13,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:24:13,429 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2021-11-03 05:24:13,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 05:24:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2021-11-03 05:24:13,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:24:13,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:24:13,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:24:13,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:24:13,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:24:13,646 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:24:13,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:24:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1046617873, now seen corresponding path program 1 times [2021-11-03 05:24:13,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:24:13,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785574728] [2021-11-03 05:24:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:24:13,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:24:13,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:24:13,651 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:24:13,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:24:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:24:18,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:24:18,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:24:18,547 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:24:18,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:24:19,077 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 05:24:19,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:24:19,890 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 05:24:19,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:24:19,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785574728] [2021-11-03 05:24:19,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785574728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:24:19,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:24:19,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 05:24:19,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277521073] [2021-11-03 05:24:19,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:24:19,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:24:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:24:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:24:19,893 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 05:24:42,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:24:42,786 INFO L93 Difference]: Finished difference Result 735 states and 873 transitions. [2021-11-03 05:24:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:24:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 58 [2021-11-03 05:24:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:24:42,794 INFO L225 Difference]: With dead ends: 735 [2021-11-03 05:24:42,794 INFO L226 Difference]: Without dead ends: 459 [2021-11-03 05:24:42,795 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:24:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-03 05:24:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 231. [2021-11-03 05:24:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 230 states have internal predecessors, (276), 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 05:24:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 276 transitions. [2021-11-03 05:24:42,811 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 276 transitions. Word has length 58 [2021-11-03 05:24:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:24:42,812 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 276 transitions. [2021-11-03 05:24:42,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 05:24:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 276 transitions. [2021-11-03 05:24:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 05:24:42,816 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:24:42,816 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, 1, 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 05:24:42,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:24:43,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:24:43,042 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 05:24:43,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:24:43,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1728662275, now seen corresponding path program 1 times [2021-11-03 05:24:43,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:24:43,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657768722] [2021-11-03 05:24:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:24:43,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:24:43,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:24:43,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:24:43,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb126f9-9587-4d65-aee1-be795f53609c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:24:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:24:47,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:24:47,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:24:48,176 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:24:48,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-03 05:24:48,459 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 05:24:48,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:25:04,115 WARN L207 SmtUtils]: Spent 14.95 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 05:25:04,121 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 05:25:04,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772