./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_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_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/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_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/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_34e107ac-8ced-4566-ad63-059c25202f5b/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 f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:40:02,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:40:02,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:40:02,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:40:02,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:40:02,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:40:02,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:40:02,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:40:02,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:40:02,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:40:02,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:40:02,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:40:02,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:40:02,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:40:02,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:40:02,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:40:02,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:40:02,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:40:02,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:40:02,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:40:02,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:40:02,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:40:02,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:40:02,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:40:02,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:40:02,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:40:02,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:40:02,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:40:02,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:40:02,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:40:02,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:40:02,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:40:02,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:40:02,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:40:02,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:40:02,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:40:02,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:40:02,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:40:02,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:40:02,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:40:02,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:40:02,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:40:02,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:40:02,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:40:02,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:40:02,652 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:40:02,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:40:02,652 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:40:02,652 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:40:02,653 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:40:02,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:40:02,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:40:02,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:40:02,654 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:40:02,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:40:02,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:40:02,654 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:40:02,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:40:02,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:40:02,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:40:02,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:40:02,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:40:02,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:40:02,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:40:02,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:40:02,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:40:02,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:40:02,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:40:02,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:40:02,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:40:02,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:40:02,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:40:02,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:40:02,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:40:02,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:40:02,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:40:02,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:40:02,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:40:02,661 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_34e107ac-8ced-4566-ad63-059c25202f5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2021-11-03 03:40:02,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:40:02,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:40:02,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:40:02,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:40:02,986 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:40:02,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-03 03:40:03,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/c7804c1f9/62e910747fcc41d2a812c8cdc38f0d6a/FLAGd2ec93286 [2021-11-03 03:40:04,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:40:04,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-03 03:40:04,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/c7804c1f9/62e910747fcc41d2a812c8cdc38f0d6a/FLAGd2ec93286 [2021-11-03 03:40:04,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/c7804c1f9/62e910747fcc41d2a812c8cdc38f0d6a [2021-11-03 03:40:04,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:40:04,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:40:04,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:04,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:40:04,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:40:04,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:04" (1/1) ... [2021-11-03 03:40:04,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e67aa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:04, skipping insertion in model container [2021-11-03 03:40:04,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:04" (1/1) ... [2021-11-03 03:40:04,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:40:04,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:05,026 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-03 03:40:05,033 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-03 03:40:05,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:05,067 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:06,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:06,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:06,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:06,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:06,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:06,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:06,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:06,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:06,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:06,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:06,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:06,862 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:06,880 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:40:06,896 INFO L168 Benchmark]: Toolchain (without parser) took 2351.63 ms. Allocated memory was 111.1 MB in the beginning and 165.7 MB in the end (delta: 54.5 MB). Free memory was 71.3 MB in the beginning and 104.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:40:06,896 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 111.1 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:40:06,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2348.85 ms. Allocated memory was 111.1 MB in the beginning and 165.7 MB in the end (delta: 54.5 MB). Free memory was 71.0 MB in the beginning and 104.6 MB in the end (delta: -33.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:40:06,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 111.1 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2348.85 ms. Allocated memory was 111.1 MB in the beginning and 165.7 MB in the end (delta: 54.5 MB). Free memory was 71.0 MB in the beginning and 104.6 MB in the end (delta: -33.5 MB). Peak memory consumption was 19.4 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_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/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_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/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_34e107ac-8ced-4566-ad63-059c25202f5b/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 f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:40:09,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:40:09,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:40:09,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:40:09,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:40:09,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:40:09,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:40:09,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:40:09,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:40:09,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:40:09,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:40:09,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:40:09,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:40:09,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:40:09,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:40:09,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:40:09,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:40:09,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:40:09,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:40:09,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:40:09,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:40:09,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:40:09,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:40:09,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:40:09,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:40:09,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:40:09,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:40:09,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:40:09,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:40:09,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:40:09,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:40:09,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:40:09,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:40:09,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:40:09,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:40:09,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:40:09,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:40:09,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:40:09,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:40:09,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:40:09,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:40:09,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:40:09,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:40:09,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:40:09,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:40:09,680 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:40:09,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:40:09,680 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:40:09,681 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:40:09,681 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:40:09,681 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:40:09,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:40:09,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:40:09,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:40:09,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:40:09,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:40:09,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:40:09,683 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:40:09,683 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:40:09,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:40:09,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:40:09,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:40:09,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:40:09,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:40:09,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:40:09,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:40:09,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:40:09,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:40:09,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:40:09,686 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:40:09,686 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:40:09,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:40:09,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:40:09,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:40:09,687 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_34e107ac-8ced-4566-ad63-059c25202f5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2021-11-03 03:40:10,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:40:10,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:40:10,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:40:10,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:40:10,080 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:40:10,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-03 03:40:10,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/58125585d/ed053ee5375f451f84b6928e30d3a395/FLAG51cb490be [2021-11-03 03:40:11,126 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:40:11,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2021-11-03 03:40:11,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/58125585d/ed053ee5375f451f84b6928e30d3a395/FLAG51cb490be [2021-11-03 03:40:11,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/data/58125585d/ed053ee5375f451f84b6928e30d3a395 [2021-11-03 03:40:11,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:40:11,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:40:11,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:11,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:40:11,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:40:11,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:11,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2102e22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11, skipping insertion in model container [2021-11-03 03:40:11,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:11,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:40:11,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:11,741 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-03 03:40:11,750 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-03 03:40:11,782 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:11,796 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:12,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:12,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:13,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:13,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:13,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:13,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:13,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:13,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:13,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:13,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:13,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:13,568 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:13,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:13,866 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:40:13,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:13,910 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-03 03:40:13,910 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-03 03:40:13,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:13,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:13,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:13,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:14,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:14,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:14,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:14,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:14,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:14,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:14,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:14,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:14,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:14,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:14,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:14,222 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:40:14,249 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2021-11-03 03:40:14,249 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_34e107ac-8ced-4566-ad63-059c25202f5b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2021-11-03 03:40:14,251 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:14,252 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:14,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:14,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:14,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:14,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:14,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:14,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:14,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:14,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:14,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:14,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:14,398 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:14,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:14,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:15,002 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:40:15,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15 WrapperNode [2021-11-03 03:40:15,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:15,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:40:15,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:40:15,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:40:15,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:40:15,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:40:15,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:40:15,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:40:15,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:40:15,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:40:15,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:40:15,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:40:15,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (1/1) ... [2021-11-03 03:40:15,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:40:15,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:40:15,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:40:15,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:40:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:40:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:40:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:40:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:40:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:40:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:40:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:40:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:40:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:40:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:40:32,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:40:32,857 INFO L299 CfgBuilder]: Removed 58 assume(true) statements. [2021-11-03 03:40:32,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:40:32 BoogieIcfgContainer [2021-11-03 03:40:32,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:40:32,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:40:32,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:40:32,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:40:32,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:40:11" (1/3) ... [2021-11-03 03:40:32,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c33bd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:40:32, skipping insertion in model container [2021-11-03 03:40:32,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:15" (2/3) ... [2021-11-03 03:40:32,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c33bd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:40:32, skipping insertion in model container [2021-11-03 03:40:32,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:40:32" (3/3) ... [2021-11-03 03:40:32,868 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness.i [2021-11-03 03:40:32,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:40:32,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 03:40:32,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:40:32,951 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 03:40:32,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 03:40:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 116 states have (on average 1.4913793103448276) internal successors, (173), 126 states have internal predecessors, (173), 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 03:40:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 03:40:32,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:32,982 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] [2021-11-03 03:40:32,983 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:40:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -443327314, now seen corresponding path program 1 times [2021-11-03 03:40:33,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:33,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720965517] [2021-11-03 03:40:33,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:33,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:33,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:33,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:40:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:37,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:40:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:37,772 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 03:40:37,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:37,886 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 03:40:37,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:37,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720965517] [2021-11-03 03:40:37,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720965517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:37,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:37,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:40:37,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753510479] [2021-11-03 03:40:37,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:40:37,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:37,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:40:37,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:40:37,914 INFO L87 Difference]: Start difference. First operand has 127 states, 116 states have (on average 1.4913793103448276) internal successors, (173), 126 states have internal predecessors, (173), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 03:40:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:37,946 INFO L93 Difference]: Finished difference Result 249 states and 339 transitions. [2021-11-03 03:40:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:40:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-11-03 03:40:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:37,960 INFO L225 Difference]: With dead ends: 249 [2021-11-03 03:40:37,960 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 03:40:37,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 03:40:37,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 03:40:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-03 03:40:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 118 states have internal predecessors, (148), 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 03:40:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 148 transitions. [2021-11-03 03:40:38,012 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 148 transitions. Word has length 26 [2021-11-03 03:40:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:38,013 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 148 transitions. [2021-11-03 03:40:38,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 03:40:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2021-11-03 03:40:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 03:40:38,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:38,015 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] [2021-11-03 03:40:38,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:38,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:38,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:40:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:38,243 INFO L85 PathProgramCache]: Analyzing trace with hash -836354324, now seen corresponding path program 1 times [2021-11-03 03:40:38,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:38,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872937655] [2021-11-03 03:40:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:38,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:38,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:38,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:38,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:40:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:42,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:40:42,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:42,961 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 03:40:42,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:43,110 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 03:40:43,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:43,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872937655] [2021-11-03 03:40:43,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872937655] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:43,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:43,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:40:43,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908638644] [2021-11-03 03:40:43,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:40:43,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:43,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:40:43,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:40:43,113 INFO L87 Difference]: Start difference. First operand 119 states and 148 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 03:40:43,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:43,412 INFO L93 Difference]: Finished difference Result 220 states and 272 transitions. [2021-11-03 03:40:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:40:43,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-11-03 03:40:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:43,418 INFO L225 Difference]: With dead ends: 220 [2021-11-03 03:40:43,418 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 03:40:43,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 03:40:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 03:40:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-03 03:40:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 109 states have (on average 1.3394495412844036) internal successors, (146), 118 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 03:40:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2021-11-03 03:40:43,430 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 26 [2021-11-03 03:40:43,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:43,430 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2021-11-03 03:40:43,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 03:40:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2021-11-03 03:40:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 03:40:43,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:43,432 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 03:40:43,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:43,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:43,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:40:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:43,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1924042484, now seen corresponding path program 1 times [2021-11-03 03:40:43,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:43,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579418193] [2021-11-03 03:40:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:43,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:43,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:43,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:43,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:40:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:48,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:40:48,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:48,346 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 03:40:48,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:48,536 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 03:40:48,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:48,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579418193] [2021-11-03 03:40:48,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579418193] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:48,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:48,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:40:48,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950939535] [2021-11-03 03:40:48,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:40:48,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:40:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:40:48,538 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:40:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:51,169 INFO L93 Difference]: Finished difference Result 263 states and 315 transitions. [2021-11-03 03:40:51,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:40:51,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:40:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:51,175 INFO L225 Difference]: With dead ends: 263 [2021-11-03 03:40:51,175 INFO L226 Difference]: Without dead ends: 196 [2021-11-03 03:40:51,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 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 03:40:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-03 03:40:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 121. [2021-11-03 03:40:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 120 states have internal predecessors, (148), 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 03:40:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 148 transitions. [2021-11-03 03:40:51,190 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 148 transitions. Word has length 30 [2021-11-03 03:40:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:51,191 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 148 transitions. [2021-11-03 03:40:51,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:40:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 148 transitions. [2021-11-03 03:40:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 03:40:51,192 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:51,193 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 03:40:51,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 03:40:51,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:51,400 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:40:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:51,401 INFO L85 PathProgramCache]: Analyzing trace with hash -149035122, now seen corresponding path program 1 times [2021-11-03 03:40:51,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:51,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015386870] [2021-11-03 03:40:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:51,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:51,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:51,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:51,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:40:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:56,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:40:56,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:56,416 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 03:40:56,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:56,492 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 03:40:56,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:56,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015386870] [2021-11-03 03:40:56,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015386870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:56,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:56,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:40:56,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117892622] [2021-11-03 03:40:56,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:40:56,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:40:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:40:56,494 INFO L87 Difference]: Start difference. First operand 121 states and 148 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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 03:40:57,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:57,701 INFO L93 Difference]: Finished difference Result 199 states and 242 transitions. [2021-11-03 03:40:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:40:57,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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 03:40:57,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:57,717 INFO L225 Difference]: With dead ends: 199 [2021-11-03 03:40:57,717 INFO L226 Difference]: Without dead ends: 122 [2021-11-03 03:40:57,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:40:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-03 03:40:57,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-03 03:40:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 112 states have (on average 1.3303571428571428) internal successors, (149), 121 states have internal predecessors, (149), 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 03:40:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2021-11-03 03:40:57,726 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 30 [2021-11-03 03:40:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:57,726 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2021-11-03 03:40:57,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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 03:40:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2021-11-03 03:40:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 03:40:57,727 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:57,728 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 03:40:57,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:57,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:57,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:40:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash -958381748, now seen corresponding path program 1 times [2021-11-03 03:40:57,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:57,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528888880] [2021-11-03 03:40:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:57,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:57,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:57,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:57,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:41:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:02,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:41:02,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:41:02,764 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 03:41:02,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:41:02,969 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 03:41:02,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:41:02,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528888880] [2021-11-03 03:41:02,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528888880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:02,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:02,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:41:02,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067044538] [2021-11-03 03:41:02,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:41:02,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:41:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:41:02,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:41:02,971 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:41:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:05,411 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2021-11-03 03:41:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:41:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:41:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:05,418 INFO L225 Difference]: With dead ends: 264 [2021-11-03 03:41:05,418 INFO L226 Difference]: Without dead ends: 197 [2021-11-03 03:41:05,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:41:05,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-03 03:41:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 120. [2021-11-03 03:41:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 119 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 03:41:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2021-11-03 03:41:05,440 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 30 [2021-11-03 03:41:05,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:05,440 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2021-11-03 03:41:05,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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 03:41:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2021-11-03 03:41:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 03:41:05,442 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:05,442 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 03:41:05,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:41:05,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:41:05,643 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:41:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 434837223, now seen corresponding path program 1 times [2021-11-03 03:41:05,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:41:05,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126078687] [2021-11-03 03:41:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:05,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:41:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:41:05,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:41:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:41:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:10,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:41:10,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:41:10,312 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 03:41:10,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:41:10,433 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 03:41:10,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:41:10,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126078687] [2021-11-03 03:41:10,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126078687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:10,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:10,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 03:41:10,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015591502] [2021-11-03 03:41:10,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:41:10,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:41:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:41:10,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:41:10,435 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:11,476 INFO L93 Difference]: Finished difference Result 219 states and 258 transitions. [2021-11-03 03:41:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 03:41:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-03 03:41:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:11,478 INFO L225 Difference]: With dead ends: 219 [2021-11-03 03:41:11,478 INFO L226 Difference]: Without dead ends: 213 [2021-11-03 03:41:11,479 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:41:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-03 03:41:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2021-11-03 03:41:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 131 states have internal predecessors, (158), 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 03:41:11,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2021-11-03 03:41:11,486 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 32 [2021-11-03 03:41:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:11,487 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2021-11-03 03:41:11,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2021-11-03 03:41:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 03:41:11,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:11,488 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 03:41:11,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:41:11,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:41:11,710 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 03:41:11,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:11,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2134165153, now seen corresponding path program 1 times [2021-11-03 03:41:11,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:41:11,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923061328] [2021-11-03 03:41:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:11,713 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:41:11,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:41:11,714 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:41:11,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e107ac-8ced-4566-ad63-059c25202f5b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:41:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:40,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 03:41:40,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:41:40,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-03 03:41:41,655 INFO L354 Elim1Store]: treesize reduction 54, result has 31.6 percent of original size [2021-11-03 03:41:41,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 46 [2021-11-03 03:41:42,419 INFO L354 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2021-11-03 03:41:42,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 63 [2021-11-03 03:41:44,871 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-03 03:41:44,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-03 03:41:45,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:41:45,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-03 03:41:45,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 03:41:45,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:45,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:41:48,495 INFO L354 Elim1Store]: treesize reduction 6893, result has 2.0 percent of original size [2021-11-03 03:41:48,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 44 case distinctions, treesize of input 127 treesize of output 172 [2021-11-03 03:41:49,873 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 03:41:49,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:41:50,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:41:50,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 511 [2021-11-03 03:42:21,958 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_2 (_ BitVec 8)) (|v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14.base_16| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| (_ BitVec 64))) (or (not (= (_ bv0 1) (select (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14.base_16| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15|))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15|) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd (_ bv6 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd (_ bv7 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|)) (select .cse0 (bvadd (_ bv6 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset| (_ bv5 64)))) (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv1 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|)))))) is different from false [2021-11-03 03:42:24,786 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0.base_12| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8)) (|v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14.base_16| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0.base_17| (_ BitVec 64))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0.base_17| (_ bv1 1)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old~0.base_17|))) (not (= (_ bv0 1) (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0.base_12|))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store (store .cse0 |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#old_byte_from_cursor~0.base_12| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_harness_~#rv~14.base_16| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15|)))))) (= (_ bv0 64) (let ((.cse1 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.base_15|) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd (_ bv6 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_advance_~#rv~6.offset|) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse1 (bvadd (_ bv7 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|)) (select .cse1 (bvadd (_ bv6 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse1 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset| (_ bv5 64)))) (select .cse1 (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse1 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse1 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse1 (bvadd (_ bv1 64) |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))) (select .cse1 |c_ULTIMATE.start_aws_byte_cursor_advance_harness_~#cursor~2.offset|))))))) is different from false