./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_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_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/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_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/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_51ee801d-b189-4028-b69e-f8d5d517de78/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:39:59,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:39:59,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:39:59,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:39:59,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:39:59,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:39:59,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:39:59,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:39:59,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:39:59,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:39:59,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:39:59,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:39:59,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:39:59,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:39:59,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:39:59,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:39:59,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:39:59,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:39:59,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:39:59,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:39:59,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:39:59,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:39:59,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:39:59,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:39:59,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:39:59,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:39:59,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:39:59,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:39:59,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:39:59,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:39:59,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:39:59,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:39:59,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:39:59,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:39:59,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:39:59,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:39:59,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:39:59,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:39:59,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:39:59,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:39:59,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:39:59,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:39:59,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:39:59,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:39:59,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:39:59,954 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:39:59,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:39:59,954 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:39:59,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:39:59,955 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:39:59,955 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:39:59,955 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:39:59,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:39:59,956 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:39:59,956 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:39:59,956 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:39:59,956 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:39:59,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:39:59,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:39:59,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:39:59,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:39:59,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:39:59,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:39:59,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:39:59,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:39:59,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:39:59,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:39:59,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:39:59,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:39:59,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:39:59,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:39:59,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:39:59,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:39:59,961 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:39:59,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:39:59,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:39:59,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:39:59,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:39:59,962 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_51ee801d-b189-4028-b69e-f8d5d517de78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2021-11-03 03:40:00,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:40:00,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:40:00,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:40:00,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:40:00,335 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:40:00,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-03 03:40:00,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/521afe77b/49ea553427124431b5b57a7006aba1c3/FLAGdf1c4d69e [2021-11-03 03:40:01,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:40:01,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-03 03:40:01,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/521afe77b/49ea553427124431b5b57a7006aba1c3/FLAGdf1c4d69e [2021-11-03 03:40:01,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/521afe77b/49ea553427124431b5b57a7006aba1c3 [2021-11-03 03:40:01,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:40:01,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:40:01,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:01,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:40:01,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:40:01,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:01" (1/1) ... [2021-11-03 03:40:01,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f6b44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:01, skipping insertion in model container [2021-11-03 03:40:01,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:01" (1/1) ... [2021-11-03 03:40:01,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:40:01,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:02,205 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-03 03:40:02,214 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-03 03:40:02,243 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:02,258 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:03,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:03,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:03,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:03,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:03,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:03,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:03,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:03,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:03,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:03,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:03,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:03,909 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:03,928 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:40:03,938 INFO L168 Benchmark]: Toolchain (without parser) took 2145.24 ms. Allocated memory is still 119.5 MB. Free memory was 90.9 MB in the beginning and 58.3 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:40:03,939 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 92.2 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:40:03,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2138.61 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 58.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:40:03,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 92.2 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2138.61 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 58.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/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_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/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_51ee801d-b189-4028-b69e-f8d5d517de78/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:40:06,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:40:06,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:40:06,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:40:06,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:40:06,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:40:06,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:40:06,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:40:06,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:40:06,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:40:06,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:40:06,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:40:06,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:40:06,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:40:06,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:40:06,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:40:06,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:40:06,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:40:06,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:40:06,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:40:06,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:40:06,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:40:06,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:40:06,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:40:06,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:40:06,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:40:06,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:40:06,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:40:06,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:40:06,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:40:06,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:40:06,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:40:06,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:40:06,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:40:06,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:40:06,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:40:06,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:40:06,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:40:06,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:40:06,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:40:06,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:40:06,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:40:06,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:40:06,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:40:06,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:40:06,468 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:40:06,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:40:06,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:40:06,469 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:40:06,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:40:06,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:40:06,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:40:06,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:40:06,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:40:06,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:40:06,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:40:06,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:40:06,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:40:06,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:40:06,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:40:06,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:40:06,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:40:06,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:40:06,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:40:06,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:40:06,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:40:06,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:40:06,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:40:06,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:40:06,476 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:40:06,476 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:40:06,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:40:06,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:40:06,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:40:06,477 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_51ee801d-b189-4028-b69e-f8d5d517de78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2021-11-03 03:40:06,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:40:06,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:40:06,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:40:06,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:40:06,903 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:40:06,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-03 03:40:06,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/6998d528f/9cd36af174ba40889b2221da9036b6a3/FLAG449bf62ce [2021-11-03 03:40:08,080 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:40:08,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-03 03:40:08,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/6998d528f/9cd36af174ba40889b2221da9036b6a3/FLAG449bf62ce [2021-11-03 03:40:08,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/data/6998d528f/9cd36af174ba40889b2221da9036b6a3 [2021-11-03 03:40:08,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:40:08,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:40:08,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:08,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:40:08,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:40:08,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:08" (1/1) ... [2021-11-03 03:40:08,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78adb487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:08, skipping insertion in model container [2021-11-03 03:40:08,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:08" (1/1) ... [2021-11-03 03:40:08,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:40:08,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:08,693 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-03 03:40:08,703 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-03 03:40:08,736 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:08,741 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:09,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:09,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:10,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:10,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:10,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:10,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:10,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:10,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:10,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:10,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:10,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:10,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:10,619 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:10,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:10,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:10,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:10,922 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:40:10,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:40:10,990 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-03 03:40:10,991 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-03 03:40:10,992 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:10,993 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:11,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:11,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:11,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:11,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:11,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:11,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:11,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:11,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:11,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:11,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:11,204 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:11,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:11,397 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:40:11,423 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-03 03:40:11,423 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_51ee801d-b189-4028-b69e-f8d5d517de78/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-03 03:40:11,425 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:40:11,426 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:40:11,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:40:11,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:40:11,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:40:11,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:40:11,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:40:11,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:40:11,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:40:11,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:40:11,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:40:11,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:40:11,576 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:40:11,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:40:11,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:40:11,996 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:40:11,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11 WrapperNode [2021-11-03 03:40:11,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:40:11,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:40:11,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:40:11,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:40:12,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:40:12,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:40:12,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:40:12,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:40:12,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:40:12,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:40:12,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:40:12,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:40:12,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (1/1) ... [2021-11-03 03:40:12,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:40:12,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:40:12,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:40:12,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:40:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:40:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:40:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:40:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:40:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:40:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:40:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:40:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:40:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:40:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:40:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-03 03:40:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-03 03:40:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 03:40:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:40:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:40:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:40:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:40:29,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:40:29,446 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-11-03 03:40:29,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:40:29 BoogieIcfgContainer [2021-11-03 03:40:29,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:40:29,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:40:29,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:40:29,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:40:29,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:40:08" (1/3) ... [2021-11-03 03:40:29,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff6c0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:40:29, skipping insertion in model container [2021-11-03 03:40:29,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:11" (2/3) ... [2021-11-03 03:40:29,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff6c0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:40:29, skipping insertion in model container [2021-11-03 03:40:29,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:40:29" (3/3) ... [2021-11-03 03:40:29,464 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2021-11-03 03:40:29,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:40:29,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 03:40:29,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:40:29,544 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:40:29,545 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 03:40:29,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 159 states have (on average 1.509433962264151) internal successors, (240), 172 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:29,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 03:40:29,585 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:29,586 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] [2021-11-03 03:40:29,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:40:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:29,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1767919810, now seen corresponding path program 1 times [2021-11-03 03:40:29,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:29,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476262989] [2021-11-03 03:40:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:29,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:29,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:29,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:40:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:34,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:40:34,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:34,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:34,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:34,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476262989] [2021-11-03 03:40:34,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476262989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:34,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:34,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:40:34,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926371854] [2021-11-03 03:40:34,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:40:34,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:40:34,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:40:34,429 INFO L87 Difference]: Start difference. First operand has 173 states, 159 states have (on average 1.509433962264151) internal successors, (240), 172 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:34,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:34,456 INFO L93 Difference]: Finished difference Result 343 states and 476 transitions. [2021-11-03 03:40:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:40:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-03 03:40:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:34,469 INFO L225 Difference]: With dead ends: 343 [2021-11-03 03:40:34,469 INFO L226 Difference]: Without dead ends: 168 [2021-11-03 03:40:34,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:40:34,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-03 03:40:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-03 03:40:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.3870967741935485) internal successors, (215), 167 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2021-11-03 03:40:34,522 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 33 [2021-11-03 03:40:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:34,523 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2021-11-03 03:40:34,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2021-11-03 03:40:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 03:40:34,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:34,525 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] [2021-11-03 03:40:34,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:34,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:34,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:40:34,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1997046536, now seen corresponding path program 1 times [2021-11-03 03:40:34,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:34,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121244825] [2021-11-03 03:40:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:34,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:34,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:34,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:40:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:39,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:40:39,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:39,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:39,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:39,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121244825] [2021-11-03 03:40:39,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121244825] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:39,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:39,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:40:39,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906094814] [2021-11-03 03:40:39,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:40:39,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:39,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:40:39,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:40:39,856 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:40,224 INFO L93 Difference]: Finished difference Result 310 states and 396 transitions. [2021-11-03 03:40:40,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:40:40,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-11-03 03:40:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:40,227 INFO L225 Difference]: With dead ends: 310 [2021-11-03 03:40:40,227 INFO L226 Difference]: Without dead ends: 168 [2021-11-03 03:40:40,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:40:40,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-03 03:40:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-03 03:40:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.367741935483871) internal successors, (212), 167 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:40,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 212 transitions. [2021-11-03 03:40:40,263 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 212 transitions. Word has length 33 [2021-11-03 03:40:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:40,266 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 212 transitions. [2021-11-03 03:40:40,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 212 transitions. [2021-11-03 03:40:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 03:40:40,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:40,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:40:40,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:40,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:40,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:40:40,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash -234670874, now seen corresponding path program 1 times [2021-11-03 03:40:40,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:40,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153861562] [2021-11-03 03:40:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:40,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:40,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:40,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:40,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:40:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:44,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:40:44,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:44,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:45,105 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:45,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153861562] [2021-11-03 03:40:45,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153861562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:45,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:45,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:40:45,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766629695] [2021-11-03 03:40:45,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:40:45,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:40:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:40:45,108 INFO L87 Difference]: Start difference. First operand 168 states and 212 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:40:45,618 INFO L93 Difference]: Finished difference Result 361 states and 462 transitions. [2021-11-03 03:40:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:40:45,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-03 03:40:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:40:45,621 INFO L225 Difference]: With dead ends: 361 [2021-11-03 03:40:45,621 INFO L226 Difference]: Without dead ends: 218 [2021-11-03 03:40:45,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:40:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-03 03:40:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 178. [2021-11-03 03:40:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 165 states have (on average 1.3454545454545455) internal successors, (222), 177 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 222 transitions. [2021-11-03 03:40:45,655 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 222 transitions. Word has length 45 [2021-11-03 03:40:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:40:45,656 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 222 transitions. [2021-11-03 03:40:45,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:40:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 222 transitions. [2021-11-03 03:40:45,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 03:40:45,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:40:45,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:40:45,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:40:45,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:40:45,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:40:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:40:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash -257303128, now seen corresponding path program 1 times [2021-11-03 03:40:45,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:40:45,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208246935] [2021-11-03 03:40:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:40:45,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:40:45,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:40:45,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:40:45,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:40:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:40:50,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:40:50,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:40:50,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 03:40:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:51,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:40:51,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 03:40:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:40:51,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:40:51,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208246935] [2021-11-03 03:40:51,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208246935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:40:51,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:40:51,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 03:40:51,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100206967] [2021-11-03 03:40:51,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:40:51,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:40:51,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:40:51,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:40:51,590 INFO L87 Difference]: Start difference. First operand 178 states and 222 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:22,397 INFO L93 Difference]: Finished difference Result 490 states and 615 transitions. [2021-11-03 03:41:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 03:41:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 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 45 [2021-11-03 03:41:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:22,400 INFO L225 Difference]: With dead ends: 490 [2021-11-03 03:41:22,401 INFO L226 Difference]: Without dead ends: 339 [2021-11-03 03:41:22,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-03 03:41:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-03 03:41:22,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 254. [2021-11-03 03:41:22,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 253 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 331 transitions. [2021-11-03 03:41:22,425 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 331 transitions. Word has length 45 [2021-11-03 03:41:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:22,425 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 331 transitions. [2021-11-03 03:41:22,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 331 transitions. [2021-11-03 03:41:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:41:22,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:22,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:41:22,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:41:22,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:41:22,642 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:41:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1017195303, now seen corresponding path program 1 times [2021-11-03 03:41:22,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:41:22,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068752471] [2021-11-03 03:41:22,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:22,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:41:22,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:41:22,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:41:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:41:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:26,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:41:26,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:41:27,345 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:41:27,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 03:41:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:41:27,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:41:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:41:28,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:41:28,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068752471] [2021-11-03 03:41:28,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068752471] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:28,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:28,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 03:41:28,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787016836] [2021-11-03 03:41:28,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:41:28,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:41:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:41:28,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:41:28,241 INFO L87 Difference]: Start difference. First operand 254 states and 331 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:46,585 INFO L93 Difference]: Finished difference Result 772 states and 1001 transitions. [2021-11-03 03:41:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:41:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 52 [2021-11-03 03:41:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:46,591 INFO L225 Difference]: With dead ends: 772 [2021-11-03 03:41:46,592 INFO L226 Difference]: Without dead ends: 538 [2021-11-03 03:41:46,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:41:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-03 03:41:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 301. [2021-11-03 03:41:46,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 288 states have (on average 1.3576388888888888) internal successors, (391), 300 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 391 transitions. [2021-11-03 03:41:46,630 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 391 transitions. Word has length 52 [2021-11-03 03:41:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:46,632 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 391 transitions. [2021-11-03 03:41:46,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 391 transitions. [2021-11-03 03:41:46,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:41:46,641 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:46,641 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:41:46,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:41:46,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:41:46,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:41:46,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1226787995, now seen corresponding path program 1 times [2021-11-03 03:41:46,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:41:46,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345853437] [2021-11-03 03:41:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:46,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:41:46,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:41:46,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:41:46,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:41:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:51,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 03:41:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:41:51,491 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:41:51,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 03:41:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:41:52,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:41:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:41:52,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:41:52,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345853437] [2021-11-03 03:41:52,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345853437] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:52,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:52,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 03:41:52,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652574518] [2021-11-03 03:41:52,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:41:52,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:41:52,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:41:52,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:41:52,817 INFO L87 Difference]: Start difference. First operand 301 states and 391 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:11,247 INFO L93 Difference]: Finished difference Result 1010 states and 1274 transitions. [2021-11-03 03:42:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:42:11,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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 52 [2021-11-03 03:42:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:11,254 INFO L225 Difference]: With dead ends: 1010 [2021-11-03 03:42:11,254 INFO L226 Difference]: Without dead ends: 672 [2021-11-03 03:42:11,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 03:42:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-11-03 03:42:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 296. [2021-11-03 03:42:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 283 states have (on average 1.3215547703180213) internal successors, (374), 295 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 374 transitions. [2021-11-03 03:42:11,272 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 374 transitions. Word has length 52 [2021-11-03 03:42:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:11,272 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 374 transitions. [2021-11-03 03:42:11,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:11,273 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 374 transitions. [2021-11-03 03:42:11,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 03:42:11,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:11,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:42:11,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:11,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:42:11,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:42:11,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:11,495 INFO L85 PathProgramCache]: Analyzing trace with hash 391742734, now seen corresponding path program 1 times [2021-11-03 03:42:11,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:42:11,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225717057] [2021-11-03 03:42:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:11,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:42:11,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:42:11,499 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:42:11,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ee801d-b189-4028-b69e-f8d5d517de78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:42:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:15,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 03:42:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:16,528 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:16,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-03 03:42:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:16,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:31,718 WARN L207 SmtUtils]: Spent 14.31 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 03:42:31,724 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 03:42:31,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772