./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_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_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/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_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/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_94b3bbba-4f03-499d-9c15-f9138002fa85/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:33:20,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:33:20,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:33:21,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:33:21,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:33:21,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:33:21,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:33:21,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:33:21,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:33:21,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:33:21,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:33:21,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:33:21,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:33:21,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:33:21,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:33:21,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:33:21,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:33:21,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:33:21,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:33:21,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:33:21,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:33:21,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:33:21,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:33:21,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:33:21,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:33:21,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:33:21,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:33:21,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:33:21,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:33:21,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:33:21,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:33:21,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:33:21,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:33:21,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:33:21,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:33:21,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:33:21,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:33:21,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:33:21,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:33:21,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:33:21,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:33:21,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:33:21,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:33:21,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:33:21,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:33:21,102 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:33:21,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:33:21,102 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:33:21,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:33:21,103 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:33:21,103 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:33:21,103 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:33:21,103 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:33:21,104 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:33:21,104 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:33:21,104 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:33:21,104 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:33:21,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:33:21,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:33:21,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:33:21,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:33:21,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:33:21,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:33:21,106 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:33:21,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:33:21,107 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:33:21,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:33:21,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:33:21,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:33:21,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:33:21,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:33:21,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:33:21,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:33:21,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:33:21,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:33:21,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:33:21,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:33:21,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:33:21,109 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_94b3bbba-4f03-499d-9c15-f9138002fa85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-03 04:33:21,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:33:21,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:33:21,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:33:21,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:33:21,364 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:33:21,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-03 04:33:21,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/0cbbf7b81/a51c4c0b94874bf58c7133e6c68c680b/FLAG7ca62e75f [2021-11-03 04:33:22,312 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:33:22,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-03 04:33:22,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/0cbbf7b81/a51c4c0b94874bf58c7133e6c68c680b/FLAG7ca62e75f [2021-11-03 04:33:22,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/0cbbf7b81/a51c4c0b94874bf58c7133e6c68c680b [2021-11-03 04:33:22,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:33:22,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:33:22,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:33:22,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:33:22,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:33:22,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:22" (1/1) ... [2021-11-03 04:33:22,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d653571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:22, skipping insertion in model container [2021-11-03 04:33:22,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:22" (1/1) ... [2021-11-03 04:33:22,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:33:22,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:33:22,855 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-03 04:33:22,862 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-03 04:33:22,887 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:33:22,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:33:23,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:23,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:24,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:33:24,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:33:24,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:33:24,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:33:24,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:33:24,314 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:33:24,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:33:24,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:33:24,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:33:24,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:33:24,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:33:24,489 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:33:24,495 INFO L168 Benchmark]: Toolchain (without parser) took 2058.78 ms. Allocated memory is still 138.4 MB. Free memory was 105.3 MB in the beginning and 78.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:33:24,496 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory is still 91.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:33:24,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2053.64 ms. Allocated memory is still 138.4 MB. Free memory was 105.3 MB in the beginning and 78.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:33:24,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory is still 91.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2053.64 ms. Allocated memory is still 138.4 MB. Free memory was 105.3 MB in the beginning and 78.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 25.2 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_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/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_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/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_94b3bbba-4f03-499d-9c15-f9138002fa85/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:33:26,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:33:26,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:33:26,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:33:26,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:33:26,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:33:26,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:33:26,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:33:26,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:33:26,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:33:26,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:33:26,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:33:26,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:33:26,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:33:26,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:33:26,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:33:26,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:33:26,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:33:26,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:33:26,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:33:26,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:33:26,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:33:26,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:33:26,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:33:26,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:33:26,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:33:26,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:33:26,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:33:26,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:33:26,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:33:26,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:33:26,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:33:26,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:33:26,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:33:26,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:33:26,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:33:26,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:33:26,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:33:26,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:33:26,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:33:26,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:33:26,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:33:26,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:33:26,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:33:26,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:33:26,979 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:33:26,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:33:26,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:33:26,980 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:33:26,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:33:26,980 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:33:26,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:33:26,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:33:26,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:33:26,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:33:26,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:33:26,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:33:26,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:33:26,982 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:33:26,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:33:26,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:33:26,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:33:26,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:33:26,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:33:26,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:33:26,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:33:26,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:33:26,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:33:26,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:33:26,985 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:33:26,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:33:26,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:33:26,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:33:26,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:33:26,986 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_94b3bbba-4f03-499d-9c15-f9138002fa85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-03 04:33:27,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:33:27,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:33:27,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:33:27,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:33:27,347 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:33:27,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-03 04:33:27,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/92243170a/ece1eba47fd14d5db6a3050829178840/FLAG8bc6decda [2021-11-03 04:33:28,304 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:33:28,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-03 04:33:28,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/92243170a/ece1eba47fd14d5db6a3050829178840/FLAG8bc6decda [2021-11-03 04:33:28,860 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/data/92243170a/ece1eba47fd14d5db6a3050829178840 [2021-11-03 04:33:28,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:33:28,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:33:28,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:33:28,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:33:28,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:33:28,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:28" (1/1) ... [2021-11-03 04:33:28,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5033cf74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:28, skipping insertion in model container [2021-11-03 04:33:28,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:28" (1/1) ... [2021-11-03 04:33:28,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:33:29,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:33:29,282 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-03 04:33:29,296 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-03 04:33:29,318 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:33:29,323 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:33:30,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,560 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:33:30,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:33:30,563 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:33:30,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:33:30,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:33:30,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:33:30,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:33:30,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:33:30,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:33:30,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:33:30,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:33:30,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:30,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:33:31,136 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:33:31,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:33:31,191 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-03 04:33:31,192 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-03 04:33:31,193 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:33:31,193 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:33:31,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,233 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:33:31,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:33:31,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:33:31,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:33:31,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:33:31,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:33:31,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:33:31,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:33:31,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:33:31,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:33:31,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:33:31,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:33:31,474 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:33:31,487 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-03 04:33:31,488 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_94b3bbba-4f03-499d-9c15-f9138002fa85/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-03 04:33:31,490 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:33:31,490 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:33:31,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:33:31,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:33:31,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:33:31,563 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:33:31,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:33:31,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:33:31,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:33:31,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:33:31,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:33:31,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:33:31,606 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:33:31,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:33:31,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:33:32,123 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:33:32,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32 WrapperNode [2021-11-03 04:33:32,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:33:32,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:33:32,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:33:32,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:33:32,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:33:32,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:33:32,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:33:32,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:33:32,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:33:32,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:33:32,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:33:32,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:33:32,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (1/1) ... [2021-11-03 04:33:32,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:33:32,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:33:32,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:33:32,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:33:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:33:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:33:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:33:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:33:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:33:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:33:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:33:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:33:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:33:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:33:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:33:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:33:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:33:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:33:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:33:47,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:33:47,154 INFO L299 CfgBuilder]: Removed 87 assume(true) statements. [2021-11-03 04:33:47,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:33:47 BoogieIcfgContainer [2021-11-03 04:33:47,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:33:47,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:33:47,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:33:47,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:33:47,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:33:28" (1/3) ... [2021-11-03 04:33:47,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecb9144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:33:47, skipping insertion in model container [2021-11-03 04:33:47,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:32" (2/3) ... [2021-11-03 04:33:47,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecb9144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:33:47, skipping insertion in model container [2021-11-03 04:33:47,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:33:47" (3/3) ... [2021-11-03 04:33:47,166 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-11-03 04:33:47,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:33:47,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-03 04:33:47,221 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:33:47,226 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:33:47,227 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-03 04:33:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 173 states have (on average 1.4855491329479769) internal successors, (257), 184 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 04:33:47,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:33:47,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:33:47,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:33:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:33:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -27136647, now seen corresponding path program 1 times [2021-11-03 04:33:47,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:33:47,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589682016] [2021-11-03 04:33:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:33:47,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:33:47,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:33:47,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:33:47,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:33:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:33:51,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:33:51,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:33:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:51,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:33:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:51,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:33:51,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589682016] [2021-11-03 04:33:51,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589682016] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:33:51,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:33:51,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:33:51,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345678255] [2021-11-03 04:33:51,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:33:51,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:33:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:33:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:33:51,904 INFO L87 Difference]: Start difference. First operand has 185 states, 173 states have (on average 1.4855491329479769) internal successors, (257), 184 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:33:51,938 INFO L93 Difference]: Finished difference Result 366 states and 509 transitions. [2021-11-03 04:33:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:33:51,939 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-11-03 04:33:51,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:33:51,951 INFO L225 Difference]: With dead ends: 366 [2021-11-03 04:33:51,951 INFO L226 Difference]: Without dead ends: 180 [2021-11-03 04:33:51,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:33:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-03 04:33:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-03 04:33:51,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 169 states have (on average 1.3609467455621302) internal successors, (230), 179 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:51,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2021-11-03 04:33:52,000 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 38 [2021-11-03 04:33:52,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:33:52,000 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2021-11-03 04:33:52,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2021-11-03 04:33:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 04:33:52,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:33:52,003 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:33:52,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:33:52,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:33:52,219 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:33:52,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:33:52,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2001073661, now seen corresponding path program 1 times [2021-11-03 04:33:52,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:33:52,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289280586] [2021-11-03 04:33:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:33:52,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:33:52,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:33:52,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:33:52,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:33:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:33:56,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:33:56,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:33:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:56,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:33:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:56,883 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:33:56,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289280586] [2021-11-03 04:33:56,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289280586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:33:56,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:33:56,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:33:56,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790772810] [2021-11-03 04:33:56,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:33:56,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:33:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:33:56,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:33:56,886 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:33:57,249 INFO L93 Difference]: Finished difference Result 334 states and 426 transitions. [2021-11-03 04:33:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:33:57,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2021-11-03 04:33:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:33:57,251 INFO L225 Difference]: With dead ends: 334 [2021-11-03 04:33:57,251 INFO L226 Difference]: Without dead ends: 180 [2021-11-03 04:33:57,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:33:57,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-03 04:33:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-03 04:33:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 227 transitions. [2021-11-03 04:33:57,277 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 227 transitions. Word has length 38 [2021-11-03 04:33:57,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:33:57,278 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 227 transitions. [2021-11-03 04:33:57,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 227 transitions. [2021-11-03 04:33:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 04:33:57,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:33:57,285 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] [2021-11-03 04:33:57,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:33:57,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:33:57,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:33:57,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:33:57,500 INFO L85 PathProgramCache]: Analyzing trace with hash -58490273, now seen corresponding path program 1 times [2021-11-03 04:33:57,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:33:57,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027099309] [2021-11-03 04:33:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:33:57,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:33:57,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:33:57,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:33:57,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:34:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:01,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:34:01,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:01,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:02,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:02,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027099309] [2021-11-03 04:34:02,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027099309] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:02,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:02,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:34:02,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157635861] [2021-11-03 04:34:02,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:34:02,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:34:02,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:02,114 INFO L87 Difference]: Start difference. First operand 180 states and 227 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:02,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:02,521 INFO L93 Difference]: Finished difference Result 395 states and 506 transitions. [2021-11-03 04:34:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:34:02,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-03 04:34:02,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:02,524 INFO L225 Difference]: With dead ends: 395 [2021-11-03 04:34:02,525 INFO L226 Difference]: Without dead ends: 240 [2021-11-03 04:34:02,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:34:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-03 04:34:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 192. [2021-11-03 04:34:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 181 states have (on average 1.3204419889502763) internal successors, (239), 191 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 239 transitions. [2021-11-03 04:34:02,545 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 239 transitions. Word has length 50 [2021-11-03 04:34:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:02,545 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 239 transitions. [2021-11-03 04:34:02,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 239 transitions. [2021-11-03 04:34:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 04:34:02,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:02,548 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] [2021-11-03 04:34:02,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:02,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:02,759 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:34:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:02,759 INFO L85 PathProgramCache]: Analyzing trace with hash 785515229, now seen corresponding path program 1 times [2021-11-03 04:34:02,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:02,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100513686] [2021-11-03 04:34:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:02,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:02,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:02,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:34:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:06,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:34:06,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:07,022 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 04:34:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:07,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:07,649 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 04:34:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:07,877 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:07,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100513686] [2021-11-03 04:34:07,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100513686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:07,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:07,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 04:34:07,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089645881] [2021-11-03 04:34:07,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:34:07,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:07,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:34:07,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:34:07,880 INFO L87 Difference]: Start difference. First operand 192 states and 239 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:15,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:15,504 INFO L93 Difference]: Finished difference Result 547 states and 687 transitions. [2021-11-03 04:34:15,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:34:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 50 [2021-11-03 04:34:15,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:15,507 INFO L225 Difference]: With dead ends: 547 [2021-11-03 04:34:15,507 INFO L226 Difference]: Without dead ends: 382 [2021-11-03 04:34:15,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:34:15,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-03 04:34:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 278. [2021-11-03 04:34:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 267 states have (on average 1.348314606741573) internal successors, (360), 277 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 360 transitions. [2021-11-03 04:34:15,530 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 360 transitions. Word has length 50 [2021-11-03 04:34:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:15,530 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 360 transitions. [2021-11-03 04:34:15,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 360 transitions. [2021-11-03 04:34:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:34:15,533 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:15,533 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:15,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:15,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:15,759 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:34:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash 880620184, now seen corresponding path program 1 times [2021-11-03 04:34:15,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:15,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826783404] [2021-11-03 04:34:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:15,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:15,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:15,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:15,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:34:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:19,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:34:19,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:20,237 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:34:20,237 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 04:34:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:20,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:20,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:20,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826783404] [2021-11-03 04:34:20,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826783404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:20,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:20,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:34:20,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995156854] [2021-11-03 04:34:20,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:34:20,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:34:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:34:20,918 INFO L87 Difference]: Start difference. First operand 278 states and 360 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:38,573 INFO L93 Difference]: Finished difference Result 859 states and 1103 transitions. [2021-11-03 04:34:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:34:38,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 57 [2021-11-03 04:34:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:38,579 INFO L225 Difference]: With dead ends: 859 [2021-11-03 04:34:38,580 INFO L226 Difference]: Without dead ends: 601 [2021-11-03 04:34:38,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:34:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-11-03 04:34:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 339. [2021-11-03 04:34:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3353658536585367) internal successors, (438), 338 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 438 transitions. [2021-11-03 04:34:38,601 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 438 transitions. Word has length 57 [2021-11-03 04:34:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:38,602 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 438 transitions. [2021-11-03 04:34:38,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 438 transitions. [2021-11-03 04:34:38,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:34:38,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:38,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:38,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:38,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:38,819 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:34:38,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash -964746982, now seen corresponding path program 1 times [2021-11-03 04:34:38,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:38,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167133462] [2021-11-03 04:34:38,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:38,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:38,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:38,824 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:38,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:34:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:42,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:34:42,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:43,241 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:34:43,241 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 04:34:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:43,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:44,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:44,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167133462] [2021-11-03 04:34:44,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167133462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:44,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:44,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 04:34:44,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527034614] [2021-11-03 04:34:44,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:34:44,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:44,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:34:44,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:34:44,582 INFO L87 Difference]: Start difference. First operand 339 states and 438 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:58,446 INFO L93 Difference]: Finished difference Result 1077 states and 1340 transitions. [2021-11-03 04:34:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:34:58,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 57 [2021-11-03 04:34:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:58,454 INFO L225 Difference]: With dead ends: 1077 [2021-11-03 04:34:58,455 INFO L226 Difference]: Without dead ends: 659 [2021-11-03 04:34:58,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:34:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-11-03 04:34:58,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 328. [2021-11-03 04:34:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 317 states have (on average 1.277602523659306) internal successors, (405), 327 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 405 transitions. [2021-11-03 04:34:58,475 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 405 transitions. Word has length 57 [2021-11-03 04:34:58,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:58,476 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 405 transitions. [2021-11-03 04:34:58,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:34:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 405 transitions. [2021-11-03 04:34:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:34:58,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:58,477 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:58,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:58,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:58,691 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:34:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:58,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1740889660, now seen corresponding path program 1 times [2021-11-03 04:34:58,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:58,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460540361] [2021-11-03 04:34:58,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:58,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:58,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:58,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:58,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94b3bbba-4f03-499d-9c15-f9138002fa85/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:35:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:02,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:35:02,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:03,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:03,744 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 04:35:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:35:03,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:19,805 WARN L207 SmtUtils]: Spent 15.13 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:35:19,812 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:35:19,813 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