./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/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_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/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_2aa11735-042b-4b59-9711-20fb1367b7c2/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:18:54,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:18:54,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:18:54,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:18:54,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:18:54,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:18:54,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:18:54,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:18:54,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:18:54,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:18:54,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:18:54,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:18:54,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:18:54,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:18:54,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:18:54,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:18:54,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:18:54,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:18:54,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:18:54,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:18:54,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:18:54,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:18:54,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:18:54,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:18:54,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:18:54,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:18:54,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:18:54,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:18:54,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:18:54,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:18:54,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:18:54,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:18:54,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:18:54,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:18:54,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:18:54,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:18:54,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:18:54,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:18:54,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:18:54,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:18:54,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:18:54,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:18:54,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:18:54,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:18:54,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:18:54,431 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:18:54,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:18:54,431 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:18:54,432 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:18:54,432 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:18:54,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:18:54,433 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:18:54,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:18:54,442 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:18:54,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:18:54,443 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:18:54,443 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:18:54,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:18:54,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:18:54,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:18:54,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:18:54,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:18:54,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:18:54,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:18:54,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:18:54,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:18:54,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:18:54,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:18:54,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:18:54,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:18:54,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:18:54,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:18:54,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:18:54,452 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:18:54,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:18:54,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:18:54,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:18:54,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:18:54,454 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_2aa11735-042b-4b59-9711-20fb1367b7c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-03 05:18:54,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:18:54,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:18:54,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:18:54,929 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:18:54,946 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:18:54,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-03 05:18:55,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/2c1a07a49/f8edbfec89a2489795c05234f32e9007/FLAG5988daed1 [2021-11-03 05:18:56,082 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:18:56,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-03 05:18:56,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/2c1a07a49/f8edbfec89a2489795c05234f32e9007/FLAG5988daed1 [2021-11-03 05:18:56,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/2c1a07a49/f8edbfec89a2489795c05234f32e9007 [2021-11-03 05:18:56,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:18:56,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:18:56,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:18:56,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:18:56,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:18:56,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:18:56" (1/1) ... [2021-11-03 05:18:56,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426af854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:18:56, skipping insertion in model container [2021-11-03 05:18:56,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:18:56" (1/1) ... [2021-11-03 05:18:56,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:18:56,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:18:57,120 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-03 05:18:57,132 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-03 05:18:57,165 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:18:57,172 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:18:58,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:58,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:18:59,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:18:59,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:18:59,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:18:59,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:18:59,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:18:59,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:18:59,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:18:59,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:18:59,014 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:18:59,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:18:59,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:18:59,199 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:18:59,206 INFO L168 Benchmark]: Toolchain (without parser) took 2728.59 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 40.6 MB in the beginning and 43.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:18:59,207 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 66.0 MB in the beginning and 65.9 MB in the end (delta: 55.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:18:59,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2722.79 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 40.4 MB in the beginning and 43.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:18:59,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 66.0 MB in the beginning and 65.9 MB in the end (delta: 55.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2722.79 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 40.4 MB in the beginning and 43.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 32.3 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_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/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_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/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_2aa11735-042b-4b59-9711-20fb1367b7c2/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:19:01,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:19:01,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:19:01,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:19:01,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:19:01,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:19:01,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:19:01,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:19:01,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:19:01,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:19:01,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:19:01,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:19:01,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:19:01,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:19:01,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:19:01,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:19:01,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:19:01,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:19:01,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:19:01,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:19:01,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:19:01,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:19:01,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:19:01,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:19:01,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:19:01,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:19:01,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:19:01,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:19:01,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:19:01,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:19:01,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:19:01,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:19:01,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:19:01,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:19:01,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:19:01,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:19:01,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:19:01,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:19:01,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:19:01,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:19:01,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:19:01,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:19:02,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:19:02,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:19:02,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:19:02,023 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:19:02,023 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:19:02,023 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:19:02,023 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:19:02,024 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:19:02,024 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:19:02,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:19:02,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:19:02,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:19:02,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:19:02,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:19:02,028 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:19:02,028 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:19:02,028 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:19:02,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:19:02,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:19:02,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:19:02,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:19:02,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:19:02,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:19:02,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:02,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:19:02,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:19:02,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:19:02,031 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:19:02,031 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:19:02,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:19:02,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:19:02,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:19:02,032 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_2aa11735-042b-4b59-9711-20fb1367b7c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-03 05:19:02,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:19:02,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:19:02,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:19:02,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:19:02,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:19:02,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-03 05:19:02,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/1f574ef9e/189ccc681e1147609d99ace5d03ce414/FLAG9ca76e02f [2021-11-03 05:19:03,789 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:19:03,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-03 05:19:03,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/1f574ef9e/189ccc681e1147609d99ace5d03ce414/FLAG9ca76e02f [2021-11-03 05:19:04,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/data/1f574ef9e/189ccc681e1147609d99ace5d03ce414 [2021-11-03 05:19:04,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:19:04,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:19:04,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:04,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:19:04,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:19:04,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e8f4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:04, skipping insertion in model container [2021-11-03 05:19:04,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:04" (1/1) ... [2021-11-03 05:19:04,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:19:04,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:04,601 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-03 05:19:04,610 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-03 05:19:04,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:04,657 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:05,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,836 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:05,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:06,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:06,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:06,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:06,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:06,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:06,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:06,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:06,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:06,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:06,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:06,793 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:06,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:06,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:07,205 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:19:07,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:07,284 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-03 05:19:07,285 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-03 05:19:07,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:07,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:07,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:07,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:07,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:07,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:07,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:07,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:07,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:07,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:07,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:07,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:07,524 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:07,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:07,740 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:19:07,767 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-03 05:19:07,768 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_2aa11735-042b-4b59-9711-20fb1367b7c2/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-03 05:19:07,770 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:19:07,771 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:19:07,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,843 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,844 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:07,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:19:07,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:19:07,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:19:07,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:19:07,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:19:07,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:19:07,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:19:07,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:19:07,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:19:07,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:19:07,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:19:08,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:08,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:19:08,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:08,602 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:19:08,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08 WrapperNode [2021-11-03 05:19:08,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:08,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:08,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:19:08,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:19:08,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:08,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:08,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:08,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:19:08,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:19:08,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:19:08,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:08,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:08,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:08,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:09,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:09,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:09,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:09,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:19:09,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:19:09,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:19:09,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:19:09,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (1/1) ... [2021-11-03 05:19:09,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:09,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:19:09,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:19:09,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:19:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:19:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:19:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:19:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:19:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:19:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:19:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:19:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:19:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:19:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:19:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:19:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:19:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:19:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:19:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:19:26,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:19:26,511 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-03 05:19:26,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:26 BoogieIcfgContainer [2021-11-03 05:19:26,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:19:26,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:19:26,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:19:26,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:19:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:19:04" (1/3) ... [2021-11-03 05:19:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fc7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:26, skipping insertion in model container [2021-11-03 05:19:26,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:08" (2/3) ... [2021-11-03 05:19:26,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fc7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:26, skipping insertion in model container [2021-11-03 05:19:26,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:26" (3/3) ... [2021-11-03 05:19:26,547 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_left_trim_pred_harness.i [2021-11-03 05:19:26,555 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:19:26,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 05:19:26,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:19:26,653 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:19:26,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:19:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 05:19:26,696 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:26,697 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:26,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:19:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:26,713 INFO L85 PathProgramCache]: Analyzing trace with hash 960385600, now seen corresponding path program 1 times [2021-11-03 05:19:26,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:26,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367072157] [2021-11-03 05:19:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:26,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:26,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:26,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:26,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:19:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:31,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:19:31,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:32,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:32,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:32,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367072157] [2021-11-03 05:19:32,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367072157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:32,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:32,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:19:32,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688832725] [2021-11-03 05:19:32,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:19:32,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:19:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:19:32,220 INFO L87 Difference]: Start difference. First operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:32,253 INFO L93 Difference]: Finished difference Result 244 states and 337 transitions. [2021-11-03 05:19:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:19:32,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-03 05:19:32,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:32,267 INFO L225 Difference]: With dead ends: 244 [2021-11-03 05:19:32,268 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:19:32,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:19:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:19:32,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:19:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 116 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2021-11-03 05:19:32,345 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 30 [2021-11-03 05:19:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:32,346 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2021-11-03 05:19:32,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2021-11-03 05:19:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:19:32,351 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:32,352 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:32,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:32,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:32,566 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:19:32,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash -649638665, now seen corresponding path program 1 times [2021-11-03 05:19:32,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:32,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342690845] [2021-11-03 05:19:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:32,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:32,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:32,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:32,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:19:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:37,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:19:37,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:38,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:38,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:38,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342690845] [2021-11-03 05:19:38,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342690845] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:38,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:38,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:19:38,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464539566] [2021-11-03 05:19:38,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:19:38,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:19:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:19:38,460 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:38,756 INFO L93 Difference]: Finished difference Result 213 states and 273 transitions. [2021-11-03 05:19:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:19:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-03 05:19:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:38,759 INFO L225 Difference]: With dead ends: 213 [2021-11-03 05:19:38,759 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:19:38,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:19:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:19:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:19:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3125) internal successors, (147), 116 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2021-11-03 05:19:38,774 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 32 [2021-11-03 05:19:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:38,775 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2021-11-03 05:19:38,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2021-11-03 05:19:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 05:19:38,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:38,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:38,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:38,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:38,994 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:19:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:38,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1150788759, now seen corresponding path program 1 times [2021-11-03 05:19:39,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:39,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230564597] [2021-11-03 05:19:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:39,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:39,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:39,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:39,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:19:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:44,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:19:44,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:44,988 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 05:19:44,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:45,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:45,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230564597] [2021-11-03 05:19:45,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230564597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:45,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:45,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:19:45,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789891924] [2021-11-03 05:19:45,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:19:45,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:45,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:19:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:19:45,264 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:45,604 INFO L93 Difference]: Finished difference Result 174 states and 217 transitions. [2021-11-03 05:19:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:19:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-03 05:19:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:45,608 INFO L225 Difference]: With dead ends: 174 [2021-11-03 05:19:45,608 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 05:19:45,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:19:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 05:19:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-03 05:19:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3035714285714286) internal successors, (146), 116 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2021-11-03 05:19:45,620 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 36 [2021-11-03 05:19:45,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:45,621 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2021-11-03 05:19:45,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2021-11-03 05:19:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 05:19:45,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:45,624 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:45,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:45,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:45,825 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:19:45,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:45,826 INFO L85 PathProgramCache]: Analyzing trace with hash 410162962, now seen corresponding path program 1 times [2021-11-03 05:19:45,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:45,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859989206] [2021-11-03 05:19:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:45,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:45,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:45,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:19:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:50,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 05:19:50,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:52,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:04,914 WARN L207 SmtUtils]: Spent 10.95 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 05:20:04,926 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 05:20:04,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771 [2021-11-03 05:30:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:30:14,076 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:30:14,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859989206] [2021-11-03 05:30:14,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859989206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:30:14,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:30:14,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 19 [2021-11-03 05:30:14,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429704434] [2021-11-03 05:30:14,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 05:30:14,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:30:14,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 05:30:14,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-03 05:30:14,079 INFO L87 Difference]: Start difference. First operand 117 states and 146 transitions. Second operand has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:30:36,229 INFO L93 Difference]: Finished difference Result 462 states and 570 transitions. [2021-11-03 05:30:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-03 05:30:36,233 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 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 05:30:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:30:36,237 INFO L225 Difference]: With dead ends: 462 [2021-11-03 05:30:36,237 INFO L226 Difference]: Without dead ends: 377 [2021-11-03 05:30:36,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1834 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1162, Invalid=5318, Unknown=0, NotChecked=0, Total=6480 [2021-11-03 05:30:36,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-03 05:30:36,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 207. [2021-11-03 05:30:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2475247524752475) internal successors, (252), 206 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2021-11-03 05:30:36,269 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 38 [2021-11-03 05:30:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:30:36,270 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2021-11-03 05:30:36,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2021-11-03 05:30:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:30:36,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:30:36,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:30:36,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:30:36,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:30:36,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:30:36,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:30:36,498 INFO L85 PathProgramCache]: Analyzing trace with hash 324843685, now seen corresponding path program 1 times [2021-11-03 05:30:36,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:30:36,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273707911] [2021-11-03 05:30:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:30:36,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:30:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:30:36,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:30:36,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:30:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:30:41,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:30:41,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:30:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:30:41,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:30:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:30:41,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:30:41,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273707911] [2021-11-03 05:30:41,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273707911] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:30:41,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:30:41,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:30:41,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107789797] [2021-11-03 05:30:41,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:30:41,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:30:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:30:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:30:41,386 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:30:41,647 INFO L93 Difference]: Finished difference Result 264 states and 318 transitions. [2021-11-03 05:30:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:30:41,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2021-11-03 05:30:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:30:41,651 INFO L225 Difference]: With dead ends: 264 [2021-11-03 05:30:41,652 INFO L226 Difference]: Without dead ends: 207 [2021-11-03 05:30:41,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:30:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-03 05:30:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-03 05:30:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2376237623762376) internal successors, (250), 206 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 250 transitions. [2021-11-03 05:30:41,672 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 250 transitions. Word has length 43 [2021-11-03 05:30:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:30:41,673 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 250 transitions. [2021-11-03 05:30:41,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:30:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 250 transitions. [2021-11-03 05:30:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:30:41,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:30:41,677 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:30:41,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:30:41,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:30:41,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:30:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:30:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash 495838041, now seen corresponding path program 1 times [2021-11-03 05:30:41,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:30:41,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480263955] [2021-11-03 05:30:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:30:41,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:30:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:30:41,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:30:41,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa11735-042b-4b59-9711-20fb1367b7c2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:30:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:30:46,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 05:30:46,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:30:47,496 INFO L354 Elim1Store]: treesize reduction 1202, result has 0.1 percent of original size [2021-11-03 05:30:47,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 629 treesize of output 203 [2021-11-03 05:30:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:30:47,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:00,179 WARN L207 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 1166 DAG size of output: 738 [2021-11-03 05:32:00,187 INFO L354 Elim1Store]: treesize reduction 1552, result has 58.6 percent of original size [2021-11-03 05:32:00,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 695 treesize of output 2387