./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_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_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/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_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/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_0e9d2514-29dd-4203-b88f-f0a1882209e1/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 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:33:25,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:33:25,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:33:25,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:33:25,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:33:25,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:33:25,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:33:25,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:33:25,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:33:25,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:33:25,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:33:25,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:33:25,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:33:25,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:33:25,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:33:25,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:33:25,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:33:25,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:33:25,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:33:25,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:33:25,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:33:25,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:33:25,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:33:25,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:33:25,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:33:25,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:33:25,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:33:25,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:33:25,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:33:25,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:33:25,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:33:25,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:33:25,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:33:25,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:33:25,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:33:25,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:33:25,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:33:25,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:33:25,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:33:25,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:33:25,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:33:25,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:33:25,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:33:25,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:33:25,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:33:25,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:33:25,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:33:25,471 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:33:25,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:33:25,472 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:33:25,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:33:25,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:33:25,482 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:33:25,482 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:33:25,482 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:33:25,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:33:25,483 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:33:25,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:33:25,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:33:25,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:33:25,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:33:25,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:33:25,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:33:25,486 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:33:25,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:33:25,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:33:25,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:33:25,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:33:25,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:33:25,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:25,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:33:25,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:33:25,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:33:25,490 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:33:25,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:33:25,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:33:25,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:33:25,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:33:25,510 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 [2021-11-03 05:33:25,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:33:25,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:33:25,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:33:25,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:33:25,868 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:33:25,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2021-11-03 05:33:25,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/112b77d1c/d2bba1f494f04166abe6655d3d77aa4d/FLAG3f42252e3 [2021-11-03 05:33:27,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:33:27,093 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2021-11-03 05:33:27,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/112b77d1c/d2bba1f494f04166abe6655d3d77aa4d/FLAG3f42252e3 [2021-11-03 05:33:27,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/112b77d1c/d2bba1f494f04166abe6655d3d77aa4d [2021-11-03 05:33:27,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:33:27,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:33:27,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:27,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:33:27,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:33:27,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:27" (1/1) ... [2021-11-03 05:33:27,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425e38d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:27, skipping insertion in model container [2021-11-03 05:33:27,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:27" (1/1) ... [2021-11-03 05:33:27,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:33:27,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:27,899 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2021-11-03 05:33:27,913 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2021-11-03 05:33:27,942 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:33:27,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:33:29,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:29,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:33:29,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:33:29,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:33:29,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:33:29,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:33:29,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:33:29,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:33:29,862 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:33:29,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:33:29,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:33:30,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:33:30,158 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:33:30,163 INFO L168 Benchmark]: Toolchain (without parser) took 2818.23 ms. Allocated memory is still 130.0 MB. Free memory was 103.6 MB in the beginning and 96.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:30,164 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:33:30,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2812.93 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 96.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:30,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2812.93 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 96.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 60.5 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/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_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/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_0e9d2514-29dd-4203-b88f-f0a1882209e1/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 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:33:32,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:33:32,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:33:32,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:33:32,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:33:32,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:33:32,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:33:32,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:33:32,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:33:32,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:33:32,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:33:32,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:33:32,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:33:32,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:33:32,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:33:32,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:33:32,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:33:32,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:33:32,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:33:32,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:33:32,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:33:32,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:33:32,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:33:32,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:33:32,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:33:32,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:33:32,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:33:32,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:33:32,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:33:32,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:33:32,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:33:32,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:33:32,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:33:32,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:33:32,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:33:32,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:33:32,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:33:32,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:33:32,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:33:32,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:33:32,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:33:32,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:33:32,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:33:32,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:33:32,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:33:32,999 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:33:32,999 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:33:33,000 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:33:33,000 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:33:33,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:33:33,001 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:33:33,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:33:33,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:33:33,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:33:33,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:33:33,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:33:33,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:33:33,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:33:33,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:33:33,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:33:33,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:33:33,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:33:33,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:33:33,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:33:33,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:33:33,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:33,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:33:33,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:33:33,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:33:33,009 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:33:33,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:33:33,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:33:33,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:33:33,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:33:33,011 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b61e347701f0c89420e753e852eb314cc29dd4fd4a4715a05b300c448d0ac03 [2021-11-03 05:33:33,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:33:33,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:33:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:33:33,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:33:33,574 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:33:33,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2021-11-03 05:33:33,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/09ffdad02/e3149771033e4cf0a293fb27dbc0ba78/FLAGb5654c47c [2021-11-03 05:33:34,720 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:33:34,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i [2021-11-03 05:33:34,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/09ffdad02/e3149771033e4cf0a293fb27dbc0ba78/FLAGb5654c47c [2021-11-03 05:33:35,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/data/09ffdad02/e3149771033e4cf0a293fb27dbc0ba78 [2021-11-03 05:33:35,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:33:35,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:33:35,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:35,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:33:35,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:33:35,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:35" (1/1) ... [2021-11-03 05:33:35,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1f76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:35, skipping insertion in model container [2021-11-03 05:33:35,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:35" (1/1) ... [2021-11-03 05:33:35,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:33:35,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:35,682 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2021-11-03 05:33:35,690 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2021-11-03 05:33:35,721 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:33:35,728 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:33:37,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:37,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:33:37,854 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:33:37,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:33:37,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:33:37,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:33:37,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:33:37,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:33:37,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:33:37,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:33:37,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:33:38,019 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:33:38,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:38,250 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:33:38,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:38,324 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2021-11-03 05:33:38,325 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2021-11-03 05:33:38,326 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:33:38,328 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:33:38,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:33:38,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:33:38,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:33:38,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:33:38,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:33:38,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:33:38,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:33:38,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:33:38,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:33:38,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:33:38,501 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:33:38,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:38,668 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:33:38,693 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4487,4500] [2021-11-03 05:33:38,694 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_0e9d2514-29dd-4203-b88f-f0a1882209e1/sv-benchmarks/c/aws-c-common/aws_string_eq_harness.i[4547,4560] [2021-11-03 05:33:38,695 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:33:38,696 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:33:38,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:33:38,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:33:38,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:33:38,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:33:38,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:33:38,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:33:38,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:33:38,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:33:38,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:33:38,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:33:38,809 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:33:38,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:33:38,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:39,252 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:33:39,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39 WrapperNode [2021-11-03 05:33:39,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:39,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:39,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:33:39,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:33:39,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:39,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:33:39,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:33:39,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:33:39,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:33:39,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:33:39,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:33:39,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:33:39,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (1/1) ... [2021-11-03 05:33:39,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:39,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:33:39,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:33:39,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:33:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:33:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:33:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:33:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:33:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:33:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:33:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:33:41,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:33:41,419 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-11-03 05:33:41,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:41 BoogieIcfgContainer [2021-11-03 05:33:41,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:33:41,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:33:41,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:33:41,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:33:41,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:33:35" (1/3) ... [2021-11-03 05:33:41,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4607dc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:41, skipping insertion in model container [2021-11-03 05:33:41,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:39" (2/3) ... [2021-11-03 05:33:41,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4607dc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:41, skipping insertion in model container [2021-11-03 05:33:41,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:41" (3/3) ... [2021-11-03 05:33:41,429 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness.i [2021-11-03 05:33:41,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:33:41,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 05:33:41,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:33:41,522 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 05:33:41,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:33:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 92 states have (on average 1.423913043478261) internal successors, (131), 97 states have internal predecessors, (131), 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 05:33:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-03 05:33:41,568 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:41,568 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] [2021-11-03 05:33:41,569 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 05:33:41,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:41,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1662175227, now seen corresponding path program 1 times [2021-11-03 05:33:41,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:41,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627542185] [2021-11-03 05:33:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:41,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:41,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:41,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:41,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:33:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:41,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:33:41,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:42,039 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 05:33:42,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:42,115 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 05:33:42,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:42,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627542185] [2021-11-03 05:33:42,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627542185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:42,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:42,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:33:42,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330345241] [2021-11-03 05:33:42,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:33:42,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:33:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:42,155 INFO L87 Difference]: Start difference. First operand has 98 states, 92 states have (on average 1.423913043478261) internal successors, (131), 97 states have internal predecessors, (131), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 05:33:42,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:42,180 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2021-11-03 05:33:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:33:42,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2021-11-03 05:33:42,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:42,190 INFO L225 Difference]: With dead ends: 190 [2021-11-03 05:33:42,190 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:33:42,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 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 05:33:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:33:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 05:33:42,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 92 states have internal predecessors, (111), 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 05:33:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2021-11-03 05:33:42,229 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 21 [2021-11-03 05:33:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:42,229 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2021-11-03 05:33:42,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 05:33:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2021-11-03 05:33:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-03 05:33:42,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:42,231 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] [2021-11-03 05:33:42,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:42,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:42,449 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 05:33:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1931727491, now seen corresponding path program 1 times [2021-11-03 05:33:42,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:42,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505683266] [2021-11-03 05:33:42,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:42,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:42,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:42,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:42,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:33:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:42,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:33:42,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:43,109 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 05:33:43,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:43,329 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 05:33:43,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:43,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505683266] [2021-11-03 05:33:43,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505683266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:43,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:43,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:33:43,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811325622] [2021-11-03 05:33:43,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:33:43,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:43,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:33:43,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:33:43,333 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 05:33:43,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:43,498 INFO L93 Difference]: Finished difference Result 199 states and 243 transitions. [2021-11-03 05:33:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:43,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2021-11-03 05:33:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:43,500 INFO L225 Difference]: With dead ends: 199 [2021-11-03 05:33:43,500 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:33:43,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:33:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:33:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 05:33:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.25) internal successors, (110), 92 states have internal predecessors, (110), 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 05:33:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2021-11-03 05:33:43,511 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 21 [2021-11-03 05:33:43,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:43,511 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2021-11-03 05:33:43,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 05:33:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2021-11-03 05:33:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:33:43,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:43,513 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 05:33:43,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:43,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:43,731 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 05:33:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:43,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1416092519, now seen corresponding path program 1 times [2021-11-03 05:33:43,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:43,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628083688] [2021-11-03 05:33:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:43,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:43,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:43,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:43,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:33:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:44,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 05:33:44,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:44,318 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 05:33:44,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:44,415 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 05:33:44,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:44,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628083688] [2021-11-03 05:33:44,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628083688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:44,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:44,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 05:33:44,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951717907] [2021-11-03 05:33:44,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:33:44,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:33:44,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:33:44,419 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 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 05:33:46,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:46,175 INFO L93 Difference]: Finished difference Result 148 states and 176 transitions. [2021-11-03 05:33:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:33:46,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 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 05:33:46,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:46,178 INFO L225 Difference]: With dead ends: 148 [2021-11-03 05:33:46,178 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:33:46,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:33:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:33:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 05:33:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 92 states have internal predecessors, (109), 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 05:33:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2021-11-03 05:33:46,191 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 32 [2021-11-03 05:33:46,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:46,192 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2021-11-03 05:33:46,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 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 05:33:46,192 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2021-11-03 05:33:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:33:46,194 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:46,194 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] [2021-11-03 05:33:46,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:46,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:46,410 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 05:33:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:46,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1445848690, now seen corresponding path program 1 times [2021-11-03 05:33:46,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:46,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910613686] [2021-11-03 05:33:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:46,411 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:46,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:46,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:46,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:33:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:46,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:33:46,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:47,047 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 05:33:47,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:47,181 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 05:33:47,181 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:47,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910613686] [2021-11-03 05:33:47,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910613686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:47,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:47,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-11-03 05:33:47,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901721797] [2021-11-03 05:33:47,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:33:47,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:47,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:33:47,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:33:47,184 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 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 05:33:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:49,068 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2021-11-03 05:33:49,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:33:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 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 37 [2021-11-03 05:33:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:49,071 INFO L225 Difference]: With dead ends: 152 [2021-11-03 05:33:49,071 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:33:49,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:33:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:33:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 05:33:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 92 states have internal predecessors, (107), 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 05:33:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2021-11-03 05:33:49,082 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 37 [2021-11-03 05:33:49,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:49,082 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2021-11-03 05:33:49,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 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 05:33:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2021-11-03 05:33:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:33:49,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:49,084 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] [2021-11-03 05:33:49,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:49,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:49,294 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 05:33:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1260770704, now seen corresponding path program 1 times [2021-11-03 05:33:49,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:49,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328561338] [2021-11-03 05:33:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:49,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:49,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:49,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:49,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:33:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:49,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:33:49,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:49,965 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 05:33:49,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:50,093 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 05:33:50,094 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:50,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328561338] [2021-11-03 05:33:50,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328561338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:50,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:50,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 11 [2021-11-03 05:33:50,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701711205] [2021-11-03 05:33:50,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:33:50,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:33:50,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:33:50,096 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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 05:33:52,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:52,449 INFO L93 Difference]: Finished difference Result 139 states and 160 transitions. [2021-11-03 05:33:52,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:33:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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 37 [2021-11-03 05:33:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:52,451 INFO L225 Difference]: With dead ends: 139 [2021-11-03 05:33:52,451 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:33:52,452 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:33:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:33:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 05:33:52,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 92 states have internal predecessors, (106), 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 05:33:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-03 05:33:52,461 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 37 [2021-11-03 05:33:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:52,462 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-03 05:33:52,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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 05:33:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-11-03 05:33:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:33:52,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:52,464 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] [2021-11-03 05:33:52,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:52,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:52,684 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 05:33:52,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:52,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1578047161, now seen corresponding path program 1 times [2021-11-03 05:33:52,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:52,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268593267] [2021-11-03 05:33:52,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:52,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:52,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:52,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:52,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9d2514-29dd-4203-b88f-f0a1882209e1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:33:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:53,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:33:53,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:53,696 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 05:33:53,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:06,663 WARN L207 SmtUtils]: Spent 12.90 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 05:34:06,673 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 05:34:06,674 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 127 treesize of output 767