./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_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_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/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_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/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_53607f99-eaf5-46ea-8aac-7aede9a2554d/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 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:09:09,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:09:09,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:09:09,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:09:09,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:09:09,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:09:09,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:09:09,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:09:09,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:09:09,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:09:09,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:09:09,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:09:09,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:09:09,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:09:09,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:09:09,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:09:09,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:09:09,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:09:09,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:09:09,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:09:09,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:09:09,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:09:09,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:09:09,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:09:09,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:09:09,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:09:09,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:09:09,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:09:09,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:09:09,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:09:09,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:09:09,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:09:09,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:09:09,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:09:09,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:09:09,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:09:09,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:09:09,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:09:09,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:09:09,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:09:09,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:09:09,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:09:09,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:09:09,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:09:09,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:09:09,711 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:09:09,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:09:09,711 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:09:09,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:09:09,712 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:09:09,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:09:09,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:09:09,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:09:09,714 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:09:09,714 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:09:09,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:09:09,715 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:09:09,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:09:09,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:09:09,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:09:09,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:09:09,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:09:09,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:09:09,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:09:09,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:09:09,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:09:09,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:09:09,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:09:09,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:09:09,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:09:09,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:09:09,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:09:09,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:09:09,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:09:09,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:09:09,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:09:09,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:09:09,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:09:09,721 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-03 04:09:10,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:09:10,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:09:10,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:09:10,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:09:10,062 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:09:10,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-03 04:09:10,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/97481a6f5/7913968adb0641da9dacf58edc13daf7/FLAG8feffe308 [2021-11-03 04:09:10,908 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:09:10,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-03 04:09:10,966 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/97481a6f5/7913968adb0641da9dacf58edc13daf7/FLAG8feffe308 [2021-11-03 04:09:11,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/97481a6f5/7913968adb0641da9dacf58edc13daf7 [2021-11-03 04:09:11,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:09:11,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:09:11,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:09:11,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:09:11,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:09:11,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:11" (1/1) ... [2021-11-03 04:09:11,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc498d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:11, skipping insertion in model container [2021-11-03 04:09:11,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:11" (1/1) ... [2021-11-03 04:09:11,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:09:11,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:09:11,850 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-03 04:09:11,857 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-03 04:09:11,880 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:09:11,886 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:09:12,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:12,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:13,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:09:13,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:09:13,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:09:13,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:09:13,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:09:13,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:09:13,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:09:13,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:09:13,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:09:13,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:09:13,477 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:09:13,495 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:09:13,501 INFO L168 Benchmark]: Toolchain (without parser) took 2064.47 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.9 MB in the beginning and 60.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:09:13,502 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:09:13,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2061.83 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.7 MB in the beginning and 60.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:09:13,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2061.83 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.7 MB in the beginning and 60.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 15.4 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/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_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/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_53607f99-eaf5-46ea-8aac-7aede9a2554d/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 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:09:15,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:09:15,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:09:15,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:09:15,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:09:15,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:09:15,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:09:15,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:09:15,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:09:15,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:09:15,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:09:15,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:09:15,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:09:15,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:09:15,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:09:15,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:09:15,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:09:15,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:09:15,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:09:15,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:09:15,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:09:15,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:09:15,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:09:15,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:09:15,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:09:15,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:09:15,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:09:15,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:09:15,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:09:15,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:09:15,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:09:15,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:09:15,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:09:15,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:09:15,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:09:15,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:09:15,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:09:15,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:09:15,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:09:15,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:09:15,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:09:15,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:09:15,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:09:15,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:09:15,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:09:15,812 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:09:15,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:09:15,812 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:09:15,812 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:09:15,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:09:15,813 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:09:15,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:09:15,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:09:15,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:09:15,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:09:15,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:09:15,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:09:15,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:09:15,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:09:15,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:09:15,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:09:15,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:09:15,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:09:15,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:09:15,818 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:09:15,818 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:09:15,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:09:15,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:09:15,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:09:15,819 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-03 04:09:16,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:09:16,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:09:16,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:09:16,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:09:16,272 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:09:16,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-03 04:09:16,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/9aa3ccfe0/c02fd98788c54e26ac03a02165a29a97/FLAGbfbd259de [2021-11-03 04:09:17,230 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:09:17,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-03 04:09:17,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/9aa3ccfe0/c02fd98788c54e26ac03a02165a29a97/FLAGbfbd259de [2021-11-03 04:09:17,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/data/9aa3ccfe0/c02fd98788c54e26ac03a02165a29a97 [2021-11-03 04:09:17,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:09:17,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:09:17,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:09:17,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:09:17,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:09:17,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:17" (1/1) ... [2021-11-03 04:09:17,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a4fc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:17, skipping insertion in model container [2021-11-03 04:09:17,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:17" (1/1) ... [2021-11-03 04:09:17,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:09:17,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:09:18,232 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-03 04:09:18,242 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-03 04:09:18,270 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:09:18,276 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:09:19,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:19,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:09:19,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:09:19,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:09:19,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:09:19,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:09:19,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:09:19,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:09:19,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:09:19,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:09:19,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:09:19,920 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:09:20,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:09:20,203 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:09:20,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:09:20,268 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-03 04:09:20,269 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-03 04:09:20,270 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:09:20,271 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:09:20,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:09:20,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:09:20,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:09:20,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:09:20,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:09:20,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:09:20,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:09:20,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:09:20,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:09:20,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:09:20,396 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:09:20,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:09:20,529 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:09:20,542 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-03 04:09:20,542 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_53607f99-eaf5-46ea-8aac-7aede9a2554d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-03 04:09:20,544 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:09:20,545 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:09:20,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:09:20,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:09:20,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:09:20,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:09:20,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:09:20,638 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:09:20,638 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:09:20,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:09:20,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:09:20,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:09:20,664 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:09:20,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:09:20,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:09:21,212 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:09:21,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21 WrapperNode [2021-11-03 04:09:21,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:09:21,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:09:21,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:09:21,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:09:21,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:09:21,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:09:21,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:09:21,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:09:21,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:09:21,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:09:21,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:09:21,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:09:21,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (1/1) ... [2021-11-03 04:09:21,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:09:21,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:09:21,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:09:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:09:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:09:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:09:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:09:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:09:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:09:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:09:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:09:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:09:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:09:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:09:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:09:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:09:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:09:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:09:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:09:37,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:09:37,426 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-03 04:09:37,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:37 BoogieIcfgContainer [2021-11-03 04:09:37,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:09:37,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:09:37,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:09:37,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:09:37,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:09:17" (1/3) ... [2021-11-03 04:09:37,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407ebd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:37, skipping insertion in model container [2021-11-03 04:09:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:21" (2/3) ... [2021-11-03 04:09:37,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407ebd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:37, skipping insertion in model container [2021-11-03 04:09:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:37" (3/3) ... [2021-11-03 04:09:37,437 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_nospec_harness.i [2021-11-03 04:09:37,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:09:37,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 04:09:37,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:09:37,496 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 04:09:37,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 04:09:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 127 states have internal predecessors, (174), 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 04:09:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 04:09:37,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:09:37,520 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 04:09:37,521 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 04:09:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:09:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1129112974, now seen corresponding path program 1 times [2021-11-03 04:09:37,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:09:37,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802828524] [2021-11-03 04:09:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:09:37,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:09:37,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:09:37,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:09:37,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:09:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:09:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:09:41,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:09:41,883 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 04:09:41,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:09:41,984 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 04:09:41,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:09:41,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802828524] [2021-11-03 04:09:41,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802828524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:09:41,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:09:41,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:09:41,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343940060] [2021-11-03 04:09:41,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:09:41,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:09:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:09:42,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:09:42,013 INFO L87 Difference]: Start difference. First operand has 128 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 127 states have internal predecessors, (174), 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 04:09:42,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:09:42,063 INFO L93 Difference]: Finished difference Result 251 states and 341 transitions. [2021-11-03 04:09:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:09:42,064 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 04:09:42,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:09:42,077 INFO L225 Difference]: With dead ends: 251 [2021-11-03 04:09:42,077 INFO L226 Difference]: Without dead ends: 120 [2021-11-03 04:09:42,081 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 04:09:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-03 04:09:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-03 04:09:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 119 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 04:09:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2021-11-03 04:09:42,122 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 26 [2021-11-03 04:09:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:09:42,123 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2021-11-03 04:09:42,123 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 04:09:42,124 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2021-11-03 04:09:42,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 04:09:42,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:09:42,125 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 04:09:42,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:09:42,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:09:42,326 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 04:09:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:09:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1522139984, now seen corresponding path program 1 times [2021-11-03 04:09:42,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:09:42,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888379810] [2021-11-03 04:09:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:09:42,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:09:42,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:09:42,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:09:42,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:09:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:09:46,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:09:46,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:09:46,507 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 04:09:46,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:09:46,636 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 04:09:46,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:09:46,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888379810] [2021-11-03 04:09:46,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888379810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:09:46,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:09:46,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:09:46,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420109522] [2021-11-03 04:09:46,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:09:46,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:09:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:09:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:09:46,640 INFO L87 Difference]: Start difference. First operand 120 states and 149 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 04:09:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:09:46,892 INFO L93 Difference]: Finished difference Result 222 states and 274 transitions. [2021-11-03 04:09:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:09:46,895 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 04:09:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:09:46,896 INFO L225 Difference]: With dead ends: 222 [2021-11-03 04:09:46,897 INFO L226 Difference]: Without dead ends: 120 [2021-11-03 04:09:46,898 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 04:09:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-03 04:09:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-03 04:09:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 119 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:09:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2021-11-03 04:09:46,908 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 26 [2021-11-03 04:09:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:09:46,908 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2021-11-03 04:09:46,908 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 04:09:46,909 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2021-11-03 04:09:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 04:09:46,910 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:09:46,910 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 04:09:46,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:09:47,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:09:47,128 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 04:09:47,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:09:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1685139152, now seen corresponding path program 1 times [2021-11-03 04:09:47,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:09:47,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330464089] [2021-11-03 04:09:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:09:47,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:09:47,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:09:47,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:09:47,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:09:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:09:51,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-03 04:09:51,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:09:52,196 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:09:52,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 59 [2021-11-03 04:09:52,289 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 04:09:52,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:10:02,653 WARN L207 SmtUtils]: Spent 9.94 s on a formula simplification. DAG size of input: 523 DAG size of output: 169 [2021-11-03 04:10:02,659 INFO L354 Elim1Store]: treesize reduction 1138, result has 27.7 percent of original size [2021-11-03 04:10:02,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 470 [2021-11-03 04:15:26,336 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 04:15:26,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:26,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330464089] [2021-11-03 04:15:26,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330464089] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:26,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:26,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-03 04:15:26,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348150966] [2021-11-03 04:15:26,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:15:26,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:26,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:15:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:15:26,341 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 04:15:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:41,208 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2021-11-03 04:15:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:15:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 04:15:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:41,216 INFO L225 Difference]: With dead ends: 315 [2021-11-03 04:15:41,216 INFO L226 Difference]: Without dead ends: 224 [2021-11-03 04:15:41,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:15:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-03 04:15:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 136. [2021-11-03 04:15:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.3095238095238095) internal successors, (165), 135 states have internal predecessors, (165), 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 04:15:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2021-11-03 04:15:41,235 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 30 [2021-11-03 04:15:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:41,271 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2021-11-03 04:15:41,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 04:15:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2021-11-03 04:15:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 04:15:41,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:41,273 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 04:15:41,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:41,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:41,474 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 04:15:41,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:41,480 INFO L85 PathProgramCache]: Analyzing trace with hash 875792526, now seen corresponding path program 1 times [2021-11-03 04:15:41,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:41,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629301904] [2021-11-03 04:15:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:41,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:41,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:41,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:41,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:15:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:47,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:15:47,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:47,289 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 04:15:47,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:47,530 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 04:15:47,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:47,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629301904] [2021-11-03 04:15:47,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629301904] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:47,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:47,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:15:47,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440926868] [2021-11-03 04:15:47,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:15:47,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:15:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:15:47,533 INFO L87 Difference]: Start difference. First operand 136 states and 165 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 04:15:50,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:50,137 INFO L93 Difference]: Finished difference Result 280 states and 334 transitions. [2021-11-03 04:15:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:15:50,142 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 04:15:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:50,144 INFO L225 Difference]: With dead ends: 280 [2021-11-03 04:15:50,144 INFO L226 Difference]: Without dead ends: 213 [2021-11-03 04:15:50,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:15:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-03 04:15:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 138. [2021-11-03 04:15:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 128 states have (on average 1.3046875) internal successors, (167), 137 states have internal predecessors, (167), 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 04:15:50,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2021-11-03 04:15:50,160 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 30 [2021-11-03 04:15:50,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:50,160 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2021-11-03 04:15:50,161 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 04:15:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2021-11-03 04:15:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 04:15:50,162 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:50,163 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] [2021-11-03 04:15:50,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:50,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:50,376 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 04:15:50,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2116680645, now seen corresponding path program 1 times [2021-11-03 04:15:50,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:50,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950126555] [2021-11-03 04:15:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:50,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:50,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:50,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:50,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:15:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:55,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:15:55,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:56,205 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 04:15:56,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:56,422 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 04:15:56,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:56,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950126555] [2021-11-03 04:15:56,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950126555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:56,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:56,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:15:56,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362941049] [2021-11-03 04:15:56,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:15:56,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:56,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:15:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:15:56,426 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:15:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:58,946 INFO L93 Difference]: Finished difference Result 280 states and 333 transitions. [2021-11-03 04:15:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:15:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-03 04:15:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:58,954 INFO L225 Difference]: With dead ends: 280 [2021-11-03 04:15:58,954 INFO L226 Difference]: Without dead ends: 213 [2021-11-03 04:15:58,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 04:15:58,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-03 04:15:58,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 136. [2021-11-03 04:15:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 135 states have internal predecessors, (164), 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 04:15:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2021-11-03 04:15:58,967 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 31 [2021-11-03 04:15:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:58,968 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2021-11-03 04:15:58,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:15:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2021-11-03 04:15:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 04:15:58,970 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:58,971 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 04:15:59,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:59,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,184 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 04:15:59,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1868212695, now seen corresponding path program 1 times [2021-11-03 04:15:59,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:59,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488273330] [2021-11-03 04:15:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:59,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:59,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:59,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:16:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:04,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:16:04,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:04,712 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 04:16:04,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:04,849 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 04:16:04,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:04,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488273330] [2021-11-03 04:16:04,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488273330] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:04,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:04,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:16:04,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730083244] [2021-11-03 04:16:04,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:16:04,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:16:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:16:04,853 INFO L87 Difference]: Start difference. First operand 136 states and 164 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 04:16:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:05,926 INFO L93 Difference]: Finished difference Result 229 states and 269 transitions. [2021-11-03 04:16:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:16:05,927 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 04:16:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:05,929 INFO L225 Difference]: With dead ends: 229 [2021-11-03 04:16:05,929 INFO L226 Difference]: Without dead ends: 223 [2021-11-03 04:16:05,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:16:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-03 04:16:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 148. [2021-11-03 04:16:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 138 states have (on average 1.2753623188405796) internal successors, (176), 147 states have internal predecessors, (176), 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 04:16:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2021-11-03 04:16:05,941 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 32 [2021-11-03 04:16:05,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:05,942 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2021-11-03 04:16:05,942 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 04:16:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2021-11-03 04:16:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:16:05,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:05,944 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 04:16:05,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:16:06,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:06,156 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 04:16:06,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:06,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2047805407, now seen corresponding path program 1 times [2021-11-03 04:16:06,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:06,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058073810] [2021-11-03 04:16:06,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:06,160 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:06,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:06,161 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:06,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53607f99-eaf5-46ea-8aac-7aede9a2554d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:16:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:49,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 04:16:49,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:49,498 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 04:16:50,189 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-11-03 04:16:50,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 37 [2021-11-03 04:16:50,676 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-03 04:16:50,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-03 04:16:51,862 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-03 04:16:51,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 64 [2021-11-03 04:16:51,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:16:51,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 04:16:52,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:52,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:16:55,386 INFO L354 Elim1Store]: treesize reduction 6011, result has 2.1 percent of original size [2021-11-03 04:16:55,387 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 113 treesize of output 158 [2021-11-03 04:16:56,505 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 04:16:56,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:56,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:16:56,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 511 [2021-11-03 04:17:04,578 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (_ BitVec 64))) (or (forall ((v_DerPreprocessor_2 (_ BitVec 8)) (|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv6 64)) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 63 56) (_ bv0 64)))) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd (_ bv7 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset)) (select .cse0 (bvadd (_ bv6 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv5 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv4 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv3 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv2 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv1 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|))))))) is different from false [2021-11-03 04:17:07,412 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8)) (|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#rv~14.base_17| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ BitVec 64))) (or (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv6 64)) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv7 64))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv1 64)))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#rv~14.base_17| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|))))))) is different from false [2021-11-03 04:17:10,018 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8)) (|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#rv~14.base_17| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#old_byte_from_cursor~0.base_13| (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#old~0.base_18| (_ BitVec 64))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (store (store (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#old~0.base_18| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#old_byte_from_cursor~0.base_13| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#rv~14.base_17| (_ bv1 1)) |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#old~0.base_18|))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base_17|) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) v_DerPreprocessor_2) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv6 64)) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv7 64))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv1 64)))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|)))))) is different from false