./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_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_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/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_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/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_817497e7-b6e0-4347-afca-a32cee98dbb2/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 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:59:52,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:59:52,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:59:52,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:59:52,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:59:52,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:59:52,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:59:52,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:59:52,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:59:52,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:59:52,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:59:52,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:59:52,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:59:52,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:59:52,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:59:52,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:59:52,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:59:52,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:59:52,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:59:52,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:59:52,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:59:52,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:59:52,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:59:52,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:59:52,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:59:52,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:59:52,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:59:52,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:59:52,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:59:52,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:59:52,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:59:52,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:59:52,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:59:52,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:59:52,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:59:52,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:59:52,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:59:52,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:59:52,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:59:52,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:59:52,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:59:52,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:59:52,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:59:52,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:59:52,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:59:52,521 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:59:52,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:59:52,522 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:59:52,522 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:59:52,522 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:59:52,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:59:52,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:59:52,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:59:52,524 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:59:52,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:59:52,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:59:52,525 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:59:52,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:59:52,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:59:52,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:59:52,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:59:52,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:59:52,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:59:52,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:59:52,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:59:52,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:59:52,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:59:52,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:59:52,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:59:52,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:52,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:59:52,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:59:52,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:59:52,530 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:59:52,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:59:52,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:59:52,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:59:52,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:59:52,532 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_817497e7-b6e0-4347-afca-a32cee98dbb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c [2021-11-03 04:59:52,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:59:52,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:59:52,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:59:52,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:59:52,906 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:59:52,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-03 04:59:52,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/52088064f/3c4901872fac4d3b90d13c920f288909/FLAG5fae93ff2 [2021-11-03 04:59:54,015 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:59:54,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-03 04:59:54,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/52088064f/3c4901872fac4d3b90d13c920f288909/FLAG5fae93ff2 [2021-11-03 04:59:54,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/52088064f/3c4901872fac4d3b90d13c920f288909 [2021-11-03 04:59:54,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:59:54,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:59:54,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:59:54,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:59:54,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:59:54,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:54" (1/1) ... [2021-11-03 04:59:54,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a739f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:54, skipping insertion in model container [2021-11-03 04:59:54,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:54" (1/1) ... [2021-11-03 04:59:54,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:59:54,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:59:54,915 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-03 04:59:54,922 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-03 04:59:54,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:59:54,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:59:56,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:56,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:59:56,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:59:56,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:59:56,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:59:56,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:59:56,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:59:56,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:59:56,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:59:56,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:59:56,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:59:56,660 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:59:56,675 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:59:56,686 INFO L168 Benchmark]: Toolchain (without parser) took 2257.32 ms. Allocated memory is still 153.1 MB. Free memory was 103.8 MB in the beginning and 91.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:59:56,688 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 130.1 MB in the beginning and 130.0 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:59:56,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2254.19 ms. Allocated memory is still 153.1 MB. Free memory was 103.6 MB in the beginning and 91.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:59:56,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 130.1 MB in the beginning and 130.0 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2254.19 ms. Allocated memory is still 153.1 MB. Free memory was 103.6 MB in the beginning and 91.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/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_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/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_817497e7-b6e0-4347-afca-a32cee98dbb2/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 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:59:58,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:59:58,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:59:58,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:59:58,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:59:58,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:59:58,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:59:58,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:59:58,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:59:58,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:59:58,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:59:58,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:59:58,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:59:58,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:59:58,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:59:59,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:59:59,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:59:59,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:59:59,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:59:59,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:59:59,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:59:59,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:59:59,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:59:59,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:59:59,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:59:59,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:59:59,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:59:59,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:59:59,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:59:59,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:59:59,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:59:59,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:59:59,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:59:59,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:59:59,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:59:59,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:59:59,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:59:59,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:59:59,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:59:59,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:59:59,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:59:59,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:59:59,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:59:59,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:59:59,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:59:59,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:59:59,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:59:59,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:59:59,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:59:59,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:59:59,086 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:59:59,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:59:59,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:59:59,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:59:59,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:59:59,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:59:59,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:59:59,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:59:59,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:59:59,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:59:59,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:59:59,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:59:59,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:59:59,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:59:59,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:59:59,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:59,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:59:59,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:59:59,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:59:59,092 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:59:59,092 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:59:59,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:59:59,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:59:59,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:59:59,093 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_817497e7-b6e0-4347-afca-a32cee98dbb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c [2021-11-03 04:59:59,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:59:59,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:59:59,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:59:59,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:59:59,559 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:59:59,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-03 04:59:59,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/ff523d2e1/b0350a6ac14d4a4794f98c0c8254435a/FLAG033d90206 [2021-11-03 05:00:00,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:00:00,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-03 05:00:00,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/ff523d2e1/b0350a6ac14d4a4794f98c0c8254435a/FLAG033d90206 [2021-11-03 05:00:01,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/data/ff523d2e1/b0350a6ac14d4a4794f98c0c8254435a [2021-11-03 05:00:01,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:00:01,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:00:01,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:01,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:00:01,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:00:01,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:01" (1/1) ... [2021-11-03 05:00:01,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf18efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:01, skipping insertion in model container [2021-11-03 05:00:01,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:01" (1/1) ... [2021-11-03 05:00:01,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:00:01,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:01,568 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-03 05:00:01,578 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-03 05:00:01,619 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:00:01,628 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:00:03,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:03,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:00:03,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:00:03,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:00:03,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:00:03,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:00:03,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:00:03,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:00:03,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:00:03,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:00:03,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:00:03,939 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:00:04,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:04,188 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:00:04,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:04,252 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-03 05:00:04,252 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-03 05:00:04,254 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:00:04,254 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:00:04,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:00:04,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:00:04,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:00:04,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:00:04,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:00:04,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:00:04,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:00:04,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:00:04,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:00:04,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:00:04,353 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:00:04,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:04,481 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:00:04,494 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2021-11-03 05:00:04,495 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_817497e7-b6e0-4347-afca-a32cee98dbb2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2021-11-03 05:00:04,496 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:00:04,497 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:00:04,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:00:04,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:00:04,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:00:04,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:00:04,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:00:04,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:00:04,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:00:04,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:00:04,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:00:04,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:00:04,640 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:00:04,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,732 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:04,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:00:05,238 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:00:05,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05 WrapperNode [2021-11-03 05:00:05,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:05,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:00:05,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:00:05,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:00:05,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:00:05,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:00:05,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:00:05,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:00:05,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:00:05,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:00:05,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:00:05,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:00:05,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (1/1) ... [2021-11-03 05:00:05,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:00:05,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:00:05,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:00:05,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:00:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:00:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:00:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:00:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:00:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:00:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:00:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:00:24,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:00:24,252 INFO L299 CfgBuilder]: Removed 143 assume(true) statements. [2021-11-03 05:00:24,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:24 BoogieIcfgContainer [2021-11-03 05:00:24,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:00:24,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:00:24,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:00:24,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:00:24,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:00:01" (1/3) ... [2021-11-03 05:00:24,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f95e5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:24, skipping insertion in model container [2021-11-03 05:00:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:05" (2/3) ... [2021-11-03 05:00:24,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f95e5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:24, skipping insertion in model container [2021-11-03 05:00:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:24" (3/3) ... [2021-11-03 05:00:24,265 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness.i [2021-11-03 05:00:24,271 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:00:24,271 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-03 05:00:24,343 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:00:24,358 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 05:00:24,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-03 05:00:24,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 273 states have (on average 1.4945054945054945) internal successors, (408), 292 states have internal predecessors, (408), 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 05:00:24,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 05:00:24,403 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:24,404 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:24,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:00:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash -389295303, now seen corresponding path program 1 times [2021-11-03 05:00:24,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:24,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266258137] [2021-11-03 05:00:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:24,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:24,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:24,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:24,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:00:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:28,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:00:28,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:29,247 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 05:00:29,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:29,528 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 05:00:29,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:29,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266258137] [2021-11-03 05:00:29,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266258137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:29,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:29,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:00:29,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267648509] [2021-11-03 05:00:29,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:00:29,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:00:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:00:29,551 INFO L87 Difference]: Start difference. First operand has 293 states, 273 states have (on average 1.4945054945054945) internal successors, (408), 292 states have internal predecessors, (408), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:00:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:29,591 INFO L93 Difference]: Finished difference Result 582 states and 811 transitions. [2021-11-03 05:00:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:00:29,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 05:00:29,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:29,617 INFO L225 Difference]: With dead ends: 582 [2021-11-03 05:00:29,618 INFO L226 Difference]: Without dead ends: 286 [2021-11-03 05:00:29,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 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 05:00:29,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-03 05:00:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-03 05:00:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 267 states have (on average 1.3558052434456929) internal successors, (362), 285 states have internal predecessors, (362), 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 05:00:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 362 transitions. [2021-11-03 05:00:29,704 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 362 transitions. Word has length 60 [2021-11-03 05:00:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:29,705 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 362 transitions. [2021-11-03 05:00:29,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:00:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 362 transitions. [2021-11-03 05:00:29,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 05:00:29,708 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:29,713 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:29,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:29,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:29,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:00:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 20483131, now seen corresponding path program 1 times [2021-11-03 05:00:29,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:29,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225404912] [2021-11-03 05:00:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:29,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:29,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:29,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:29,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:00:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:34,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:00:34,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:34,668 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 05:00:34,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:34,955 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 05:00:34,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:34,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225404912] [2021-11-03 05:00:34,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225404912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:34,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:34,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:00:34,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401940689] [2021-11-03 05:00:34,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:00:34,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:00:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:00:34,959 INFO L87 Difference]: Start difference. First operand 286 states and 362 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:00:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:37,464 INFO L93 Difference]: Finished difference Result 546 states and 690 transitions. [2021-11-03 05:00:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:00:37,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 05:00:37,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:37,468 INFO L225 Difference]: With dead ends: 546 [2021-11-03 05:00:37,468 INFO L226 Difference]: Without dead ends: 286 [2021-11-03 05:00:37,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:00:37,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-03 05:00:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-03 05:00:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 267 states have (on average 1.352059925093633) internal successors, (361), 285 states have internal predecessors, (361), 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 05:00:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 361 transitions. [2021-11-03 05:00:37,483 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 361 transitions. Word has length 60 [2021-11-03 05:00:37,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:37,484 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 361 transitions. [2021-11-03 05:00:37,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:00:37,484 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 361 transitions. [2021-11-03 05:00:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 05:00:37,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:37,487 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:37,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:37,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:37,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:00:37,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1997095144, now seen corresponding path program 1 times [2021-11-03 05:00:37,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:37,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67909142] [2021-11-03 05:00:37,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:37,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:37,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:37,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:37,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:00:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:41,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:00:41,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:42,213 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 05:00:42,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:42,443 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 05:00:42,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:42,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67909142] [2021-11-03 05:00:42,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67909142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:42,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:42,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:00:42,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271511093] [2021-11-03 05:00:42,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:00:42,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:42,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:00:42,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:00:42,446 INFO L87 Difference]: Start difference. First operand 286 states and 361 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:00:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:46,439 INFO L93 Difference]: Finished difference Result 637 states and 816 transitions. [2021-11-03 05:00:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:00:46,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-03 05:00:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:46,442 INFO L225 Difference]: With dead ends: 637 [2021-11-03 05:00:46,443 INFO L226 Difference]: Without dead ends: 376 [2021-11-03 05:00:46,444 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:00:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-03 05:00:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 304. [2021-11-03 05:00:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 285 states have (on average 1.3298245614035087) internal successors, (379), 303 states have internal predecessors, (379), 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 05:00:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2021-11-03 05:00:46,457 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 66 [2021-11-03 05:00:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:46,457 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2021-11-03 05:00:46,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:00:46,458 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2021-11-03 05:00:46,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 05:00:46,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:46,461 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:00:46,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:46,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:46,677 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:00:46,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash -269286042, now seen corresponding path program 1 times [2021-11-03 05:00:46,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:46,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882088696] [2021-11-03 05:00:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:46,682 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:46,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:46,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:00:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:50,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:00:50,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:51,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:00:51,729 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 05:00:51,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:52,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:00:52,384 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 05:00:52,384 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:52,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882088696] [2021-11-03 05:00:52,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882088696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:52,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:52,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:00:52,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170119427] [2021-11-03 05:00:52,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:00:52,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:00:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:00:52,387 INFO L87 Difference]: Start difference. First operand 304 states and 379 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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 05:01:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:07,205 INFO L93 Difference]: Finished difference Result 645 states and 812 transitions. [2021-11-03 05:01:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:01:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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 66 [2021-11-03 05:01:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:07,210 INFO L225 Difference]: With dead ends: 645 [2021-11-03 05:01:07,210 INFO L226 Difference]: Without dead ends: 368 [2021-11-03 05:01:07,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:01:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-03 05:01:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 302. [2021-11-03 05:01:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 283 states have (on average 1.3286219081272084) internal successors, (376), 301 states have internal predecessors, (376), 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 05:01:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 376 transitions. [2021-11-03 05:01:07,222 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 376 transitions. Word has length 66 [2021-11-03 05:01:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:07,222 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 376 transitions. [2021-11-03 05:01:07,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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 05:01:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 376 transitions. [2021-11-03 05:01:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:01:07,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:07,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:07,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:07,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:07,446 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:01:07,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:07,447 INFO L85 PathProgramCache]: Analyzing trace with hash -497506320, now seen corresponding path program 1 times [2021-11-03 05:01:07,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:07,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960795248] [2021-11-03 05:01:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:07,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:07,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:07,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:07,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:01:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:11,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:01:11,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:12,124 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:01:12,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:01:12,388 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 05:01:12,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:13,051 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 05:01:13,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:13,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960795248] [2021-11-03 05:01:13,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960795248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:13,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:13,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:01:13,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409275451] [2021-11-03 05:01:13,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:01:13,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:13,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:01:13,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:01:13,054 INFO L87 Difference]: Start difference. First operand 302 states and 376 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 05:01:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:30,984 INFO L93 Difference]: Finished difference Result 933 states and 1151 transitions. [2021-11-03 05:01:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:01:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 70 [2021-11-03 05:01:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:30,993 INFO L225 Difference]: With dead ends: 933 [2021-11-03 05:01:30,993 INFO L226 Difference]: Without dead ends: 651 [2021-11-03 05:01:30,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:01:30,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-11-03 05:01:31,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 363. [2021-11-03 05:01:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 344 states have (on average 1.319767441860465) internal successors, (454), 362 states have internal predecessors, (454), 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 05:01:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 454 transitions. [2021-11-03 05:01:31,011 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 454 transitions. Word has length 70 [2021-11-03 05:01:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:31,011 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 454 transitions. [2021-11-03 05:01:31,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 05:01:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 454 transitions. [2021-11-03 05:01:31,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:01:31,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:31,020 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:31,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:31,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:31,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:01:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1040833710, now seen corresponding path program 1 times [2021-11-03 05:01:31,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:31,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80073111] [2021-11-03 05:01:31,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:31,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:31,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:31,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:31,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:01:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:35,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:01:35,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:35,820 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:01:35,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:01:36,418 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 05:01:36,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:37,264 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 05:01:37,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:37,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80073111] [2021-11-03 05:01:37,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80073111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:37,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:37,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 05:01:37,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045964783] [2021-11-03 05:01:37,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:01:37,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:01:37,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:01:37,269 INFO L87 Difference]: Start difference. First operand 363 states and 454 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 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 05:02:37,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:37,651 INFO L93 Difference]: Finished difference Result 1180 states and 1397 transitions. [2021-11-03 05:02:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:02:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 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 70 [2021-11-03 05:02:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:37,660 INFO L225 Difference]: With dead ends: 1180 [2021-11-03 05:02:37,661 INFO L226 Difference]: Without dead ends: 738 [2021-11-03 05:02:37,662 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:02:37,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2021-11-03 05:02:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 354. [2021-11-03 05:02:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 335 states have (on average 1.2567164179104477) internal successors, (421), 353 states have internal predecessors, (421), 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 05:02:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 421 transitions. [2021-11-03 05:02:37,678 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 421 transitions. Word has length 70 [2021-11-03 05:02:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:37,679 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 421 transitions. [2021-11-03 05:02:37,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 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 05:02:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 421 transitions. [2021-11-03 05:02:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:02:37,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:37,681 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:37,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:37,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:37,896 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:02:37,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:37,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1397731993, now seen corresponding path program 1 times [2021-11-03 05:02:37,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:37,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747914912] [2021-11-03 05:02:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:37,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:37,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:37,901 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:37,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:02:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:42,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:02:42,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:43,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:02:43,594 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 05:02:43,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:44,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:02:44,350 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 05:02:44,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:44,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747914912] [2021-11-03 05:02:44,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747914912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:44,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:44,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:02:44,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175215786] [2021-11-03 05:02:44,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:02:44,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:44,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:02:44,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:02:44,353 INFO L87 Difference]: Start difference. First operand 354 states and 421 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 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 05:02:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:54,326 INFO L93 Difference]: Finished difference Result 731 states and 874 transitions. [2021-11-03 05:02:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:02:54,327 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 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 96 [2021-11-03 05:02:54,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:54,331 INFO L225 Difference]: With dead ends: 731 [2021-11-03 05:02:54,331 INFO L226 Difference]: Without dead ends: 432 [2021-11-03 05:02:54,332 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:02:54,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-03 05:02:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 348. [2021-11-03 05:02:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 329 states have (on average 1.2553191489361701) internal successors, (413), 347 states have internal predecessors, (413), 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 05:02:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 413 transitions. [2021-11-03 05:02:54,346 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 413 transitions. Word has length 96 [2021-11-03 05:02:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:54,347 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 413 transitions. [2021-11-03 05:02:54,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 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 05:02:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 413 transitions. [2021-11-03 05:02:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-03 05:02:54,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:54,349 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:54,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:54,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:54,569 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:02:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash -88599126, now seen corresponding path program 1 times [2021-11-03 05:02:54,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:54,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199411945] [2021-11-03 05:02:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:54,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:54,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:54,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:54,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:02:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:59,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2018 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:02:59,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:59,418 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 05:02:59,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:59,736 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 05:02:59,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:59,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199411945] [2021-11-03 05:02:59,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199411945] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:59,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:59,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:02:59,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177919695] [2021-11-03 05:02:59,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:02:59,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:02:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:02:59,738 INFO L87 Difference]: Start difference. First operand 348 states and 413 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 05:03:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:04,205 INFO L93 Difference]: Finished difference Result 715 states and 836 transitions. [2021-11-03 05:03:04,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:03:04,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2021-11-03 05:03:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:04,208 INFO L225 Difference]: With dead ends: 715 [2021-11-03 05:03:04,209 INFO L226 Difference]: Without dead ends: 384 [2021-11-03 05:03:04,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:04,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-03 05:03:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 334. [2021-11-03 05:03:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 315 states have (on average 1.2158730158730158) internal successors, (383), 333 states have internal predecessors, (383), 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 05:03:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 383 transitions. [2021-11-03 05:03:04,222 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 383 transitions. Word has length 102 [2021-11-03 05:03:04,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:04,223 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 383 transitions. [2021-11-03 05:03:04,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 05:03:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 383 transitions. [2021-11-03 05:03:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-03 05:03:04,225 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:04,225 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:04,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:04,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:04,440 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:03:04,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1802168550, now seen corresponding path program 1 times [2021-11-03 05:03:04,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:04,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328705854] [2021-11-03 05:03:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:04,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:04,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:04,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:04,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817497e7-b6e0-4347-afca-a32cee98dbb2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:03:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:09,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 05:03:09,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:13,252 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-03 05:03:13,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 304 treesize of output 112 [2021-11-03 05:03:13,455 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 05:03:13,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:44,750 WARN L207 SmtUtils]: Spent 27.95 s on a formula simplification. DAG size of input: 1166 DAG size of output: 314 [2021-11-03 05:03:44,759 INFO L354 Elim1Store]: treesize reduction 2882, result has 23.2 percent of original size [2021-11-03 05:03:44,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 193 treesize of output 923