./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_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_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/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_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/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_71945b1e-d2fb-4c90-b690-8132712b86bf/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 f85fffa00ce152c2185c303de3856b218143afacade5a3da3d11c284e86ce457 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:15:09,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:15:09,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:15:09,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:15:09,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:15:09,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:15:09,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:15:09,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:15:09,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:15:09,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:15:09,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:15:09,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:15:09,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:15:09,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:15:09,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:15:09,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:15:09,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:15:09,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:15:09,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:15:09,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:15:09,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:15:09,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:15:09,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:15:09,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:15:09,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:15:09,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:15:09,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:15:09,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:15:09,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:15:09,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:15:09,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:15:09,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:15:09,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:15:09,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:15:09,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:15:09,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:15:09,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:15:09,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:15:09,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:15:09,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:15:09,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:15:09,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:15:09,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:15:09,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:15:09,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:15:09,578 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:15:09,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:15:09,579 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:15:09,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:15:09,580 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:15:09,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:15:09,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:15:09,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:15:09,581 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:15:09,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:15:09,582 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:15:09,582 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:15:09,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:15:09,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:15:09,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:15:09,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:15:09,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:15:09,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:15:09,585 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:15:09,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:15:09,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:15:09,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:15:09,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:15:09,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:15:09,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:15:09,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:15:09,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:15:09,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:15:09,588 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:15:09,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:15:09,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:15:09,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:15:09,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:15:09,589 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_71945b1e-d2fb-4c90-b690-8132712b86bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f85fffa00ce152c2185c303de3856b218143afacade5a3da3d11c284e86ce457 [2021-11-03 05:15:09,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:15:10,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:15:10,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:15:10,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:15:10,015 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:15:10,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i [2021-11-03 05:15:10,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/3188fbbfe/91746a4d52a040a689d2fdc4d22b7103/FLAGc2d70ee67 [2021-11-03 05:15:11,281 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:15:11,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i [2021-11-03 05:15:11,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/3188fbbfe/91746a4d52a040a689d2fdc4d22b7103/FLAGc2d70ee67 [2021-11-03 05:15:11,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/3188fbbfe/91746a4d52a040a689d2fdc4d22b7103 [2021-11-03 05:15:11,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:15:11,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:15:11,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:15:11,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:15:11,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:15:11,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:11" (1/1) ... [2021-11-03 05:15:11,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301b6bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:11, skipping insertion in model container [2021-11-03 05:15:11,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:11" (1/1) ... [2021-11-03 05:15:11,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:15:11,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:15:12,152 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4505,4518] [2021-11-03 05:15:12,161 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4565,4578] [2021-11-03 05:15:12,193 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:15:12,207 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:15:13,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:13,483 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:14,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:15:14,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:15:14,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:15:14,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:15:14,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:15:14,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:15:14,034 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:15:14,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:15:14,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:15:14,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:15:14,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:15:14,338 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:15:14,350 INFO L168 Benchmark]: Toolchain (without parser) took 2742.13 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 71.0 MB in the beginning and 93.8 MB in the end (delta: -22.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:14,351 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 74.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:15:14,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2739.39 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 70.7 MB in the beginning and 93.8 MB in the end (delta: -23.1 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:14,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 74.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2739.39 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 70.7 MB in the beginning and 93.8 MB in the end (delta: -23.1 MB). Peak memory consumption was 29.9 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_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/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_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/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_71945b1e-d2fb-4c90-b690-8132712b86bf/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 f85fffa00ce152c2185c303de3856b218143afacade5a3da3d11c284e86ce457 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:15:17,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:15:17,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:15:17,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:15:17,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:15:17,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:15:17,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:15:17,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:15:17,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:15:17,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:15:17,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:15:17,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:15:17,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:15:17,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:15:17,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:15:17,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:15:17,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:15:17,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:15:17,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:15:17,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:15:17,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:15:17,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:15:17,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:15:17,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:15:17,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:15:17,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:15:17,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:15:17,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:15:17,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:15:17,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:15:17,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:15:17,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:15:17,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:15:17,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:15:17,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:15:17,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:15:17,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:15:17,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:15:17,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:15:17,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:15:17,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:15:17,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:15:17,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:15:17,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:15:17,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:15:17,381 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:15:17,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:15:17,382 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:15:17,382 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:15:17,382 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:15:17,382 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:15:17,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:15:17,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:15:17,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:15:17,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:15:17,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:15:17,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:15:17,387 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:15:17,388 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:15:17,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:15:17,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:15:17,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:15:17,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:15:17,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:15:17,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:15:17,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:15:17,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:15:17,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:15:17,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:15:17,391 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:15:17,391 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:15:17,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:15:17,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:15:17,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:15:17,392 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_71945b1e-d2fb-4c90-b690-8132712b86bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f85fffa00ce152c2185c303de3856b218143afacade5a3da3d11c284e86ce457 [2021-11-03 05:15:17,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:15:17,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:15:17,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:15:17,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:15:17,967 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:15:17,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i [2021-11-03 05:15:18,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/e341a3ff2/9977d16e025e434faef5bcc658c5f019/FLAG01f6c6555 [2021-11-03 05:15:19,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:15:19,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i [2021-11-03 05:15:19,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/e341a3ff2/9977d16e025e434faef5bcc658c5f019/FLAG01f6c6555 [2021-11-03 05:15:19,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/data/e341a3ff2/9977d16e025e434faef5bcc658c5f019 [2021-11-03 05:15:19,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:15:19,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:15:19,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:15:19,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:15:19,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:15:19,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:19" (1/1) ... [2021-11-03 05:15:19,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228602f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:19, skipping insertion in model container [2021-11-03 05:15:19,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:15:19" (1/1) ... [2021-11-03 05:15:19,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:15:19,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:15:20,108 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4505,4518] [2021-11-03 05:15:20,118 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4565,4578] [2021-11-03 05:15:20,155 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:15:20,164 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:15:21,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,464 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:21,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:15:22,062 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:15:22,063 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:15:22,065 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:15:22,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:15:22,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:15:22,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:15:22,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:15:22,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:15:22,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:15:22,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:15:22,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:15:22,615 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:15:22,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:15:22,766 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4505,4518] [2021-11-03 05:15:22,767 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4565,4578] [2021-11-03 05:15:22,768 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:15:22,769 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:15:22,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:15:22,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:15:22,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:15:22,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:15:22,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:15:22,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:15:22,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:15:22,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:15:22,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:15:22,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:15:22,902 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:15:22,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:22,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:15:23,128 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:15:23,160 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4505,4518] [2021-11-03 05:15:23,161 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_71945b1e-d2fb-4c90-b690-8132712b86bf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_right_trim_pred_harness.i[4565,4578] [2021-11-03 05:15:23,163 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:15:23,164 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:15:23,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:15:23,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:15:23,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:15:23,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:15:23,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:15:23,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:15:23,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:15:23,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:15:23,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:15:23,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:15:23,298 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:15:23,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:15:23,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:15:23,753 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:15:23,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23 WrapperNode [2021-11-03 05:15:23,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:15:23,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:15:23,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:15:23,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:15:23,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:23,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:15:24,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:15:24,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:15:24,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:15:24,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:15:24,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:15:24,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:15:24,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:15:24,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (1/1) ... [2021-11-03 05:15:24,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:15:24,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:15:24,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:15:24,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:15:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:15:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:15:24,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:15:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:15:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:15:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:15:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:15:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:15:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:15:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:15:41,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:15:41,452 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-03 05:15:41,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:15:41 BoogieIcfgContainer [2021-11-03 05:15:41,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:15:41,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:15:41,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:15:41,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:15:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:15:19" (1/3) ... [2021-11-03 05:15:41,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af6f186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:15:41, skipping insertion in model container [2021-11-03 05:15:41,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:15:23" (2/3) ... [2021-11-03 05:15:41,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af6f186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:15:41, skipping insertion in model container [2021-11-03 05:15:41,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:15:41" (3/3) ... [2021-11-03 05:15:41,464 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_right_trim_pred_harness.i [2021-11-03 05:15:41,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:15:41,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 05:15:41,556 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:15:41,572 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 05:15:41,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:15:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 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 05:15:41,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 05:15:41,612 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:15:41,613 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] [2021-11-03 05:15:41,613 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:15:41,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:15:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash 960385600, now seen corresponding path program 1 times [2021-11-03 05:15:41,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:15:41,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737411357] [2021-11-03 05:15:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:15:41,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:15:41,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:15:41,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:15:41,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:15:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:15:46,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:15:46,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:15:47,017 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 05:15:47,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:15:47,118 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 05:15:47,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:15:47,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737411357] [2021-11-03 05:15:47,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737411357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:15:47,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:47,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:15:47,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173210153] [2021-11-03 05:15:47,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:15:47,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:15:47,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:15:47,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:15:47,148 INFO L87 Difference]: Start difference. First operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 05:15:47,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:15:47,181 INFO L93 Difference]: Finished difference Result 244 states and 337 transitions. [2021-11-03 05:15:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:15:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-03 05:15:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:15:47,194 INFO L225 Difference]: With dead ends: 244 [2021-11-03 05:15:47,194 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:15:47,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 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 05:15:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:15:47,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:15:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 116 states have internal predecessors, (150), 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 05:15:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2021-11-03 05:15:47,248 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 30 [2021-11-03 05:15:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:15:47,248 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2021-11-03 05:15:47,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 05:15:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2021-11-03 05:15:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:15:47,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:15:47,251 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] [2021-11-03 05:15:47,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:47,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:15:47,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:15:47,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:15:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash -649638665, now seen corresponding path program 1 times [2021-11-03 05:15:47,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:15:47,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468793759] [2021-11-03 05:15:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:15:47,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:15:47,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:15:47,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:15:47,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:15:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:15:52,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:15:52,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:15:53,057 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 05:15:53,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:15:53,267 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 05:15:53,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:15:53,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468793759] [2021-11-03 05:15:53,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468793759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:15:53,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:53,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:15:53,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534075457] [2021-11-03 05:15:53,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:15:53,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:15:53,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:15:53,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:15:53,272 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 05:15:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:15:53,599 INFO L93 Difference]: Finished difference Result 213 states and 273 transitions. [2021-11-03 05:15:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:15:53,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-11-03 05:15:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:15:53,603 INFO L225 Difference]: With dead ends: 213 [2021-11-03 05:15:53,603 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:15:53,605 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 05:15:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:15:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:15:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3125) internal successors, (147), 116 states have internal predecessors, (147), 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 05:15:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2021-11-03 05:15:53,636 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 32 [2021-11-03 05:15:53,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:15:53,638 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2021-11-03 05:15:53,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 05:15:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2021-11-03 05:15:53,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 05:15:53,640 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:15:53,641 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] [2021-11-03 05:15:53,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:53,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:15:53,857 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:15:53,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:15:53,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1150788759, now seen corresponding path program 1 times [2021-11-03 05:15:53,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:15:53,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109081466] [2021-11-03 05:15:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:15:53,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:15:53,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:15:53,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:15:53,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:15:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:15:58,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:15:58,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:15:58,642 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 05:15:58,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:15:58,862 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 05:15:58,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:15:58,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109081466] [2021-11-03 05:15:58,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109081466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:15:58,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:58,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:15:58,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852913995] [2021-11-03 05:15:58,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:15:58,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:15:58,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:15:58,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:15:58,864 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 05:15:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:15:59,165 INFO L93 Difference]: Finished difference Result 174 states and 217 transitions. [2021-11-03 05:15:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:15:59,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2021-11-03 05:15:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:15:59,169 INFO L225 Difference]: With dead ends: 174 [2021-11-03 05:15:59,169 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:15:59,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:15:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:15:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:15:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3035714285714286) internal successors, (146), 116 states have internal predecessors, (146), 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 05:15:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2021-11-03 05:15:59,179 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 36 [2021-11-03 05:15:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:15:59,180 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2021-11-03 05:15:59,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 05:15:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2021-11-03 05:15:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 05:15:59,182 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:15:59,182 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] [2021-11-03 05:15:59,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:59,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:15:59,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:15:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:15:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash 410162962, now seen corresponding path program 1 times [2021-11-03 05:15:59,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:15:59,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720253117] [2021-11-03 05:15:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:15:59,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:15:59,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:15:59,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:15:59,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71945b1e-d2fb-4c90-b690-8132712b86bf/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:16:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:16:03,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 05:16:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:16:05,151 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 05:16:05,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:16:16,403 WARN L207 SmtUtils]: Spent 9.87 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 05:16:16,410 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 05:16:16,411 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 128 treesize of output 771