./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_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_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/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_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/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_00f24298-ef58-4d95-a044-afe3a2297866/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 e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:41,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:41,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:41,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:41,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:41,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:41,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:41,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:41,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:41,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:41,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:41,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:41,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:41,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:41,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:41,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:41,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:41,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:41,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:41,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:41,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:41,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:41,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:41,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:41,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:41,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:41,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:41,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:41,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:41,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:41,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:41,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:41,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:41,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:41,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:41,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:41,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:41,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:41,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:41,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:41,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:41,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:06:41,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:41,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:41,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:41,616 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:41,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:41,617 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:41,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:06:41,617 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:41,624 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:41,624 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:06:41,625 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:06:41,625 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:41,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:06:41,626 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:06:41,626 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:06:41,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:41,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:06:41,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:41,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:41,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:41,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:41,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:41,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:41,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:41,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:41,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:41,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:41,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:41,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:41,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:41,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:41,632 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:06:41,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:06:41,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:41,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:41,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:41,634 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_00f24298-ef58-4d95-a044-afe3a2297866/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb [2021-11-03 04:06:41,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:41,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:41,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:41,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:41,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:41,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-03 04:06:42,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/ff5b48ad3/9db9924f92874524ac42471a712ad58e/FLAG77d1d49bb [2021-11-03 04:06:42,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:42,895 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-03 04:06:42,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/ff5b48ad3/9db9924f92874524ac42471a712ad58e/FLAG77d1d49bb [2021-11-03 04:06:43,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/ff5b48ad3/9db9924f92874524ac42471a712ad58e [2021-11-03 04:06:43,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:43,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:43,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:43,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:43,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:43,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eba520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43, skipping insertion in model container [2021-11-03 04:06:43,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:43,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:43,898 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-03 04:06:43,910 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-03 04:06:43,941 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:43,949 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:45,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:45,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:45,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:45,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:45,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:45,605 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:45,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:45,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:45,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:45,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:45,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:45,833 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:45,852 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:06:45,857 INFO L168 Benchmark]: Toolchain (without parser) took 2474.10 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 59.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:45,857 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:06:45,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2471.82 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 59.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:45,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2471.82 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 59.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.4 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_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/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_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/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_00f24298-ef58-4d95-a044-afe3a2297866/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 e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:48,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:48,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:48,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:48,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:48,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:48,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:48,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:48,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:48,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:48,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:48,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:48,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:48,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:48,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:48,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:48,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:48,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:48,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:48,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:48,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:48,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:48,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:48,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:48,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:48,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:48,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:48,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:48,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:48,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:48,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:48,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:48,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:48,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:48,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:48,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:48,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:48,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:48,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:48,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:48,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:48,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:06:48,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:48,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:48,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:48,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:48,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:48,226 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:48,226 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:48,227 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:48,227 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:48,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:48,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:48,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:48,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:48,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:48,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:48,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:06:48,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:06:48,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:48,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:48,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:48,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:48,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:06:48,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:48,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:48,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:48,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:48,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:48,241 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:06:48,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:48,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:48,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:48,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:48,242 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_00f24298-ef58-4d95-a044-afe3a2297866/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb [2021-11-03 04:06:48,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:48,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:48,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:48,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:48,642 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:48,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-03 04:06:48,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/d9415ea8f/add358d55534468a8edb1da0867d6bea/FLAGc250d6a21 [2021-11-03 04:06:49,554 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:49,554 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-03 04:06:49,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/d9415ea8f/add358d55534468a8edb1da0867d6bea/FLAGc250d6a21 [2021-11-03 04:06:50,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/data/d9415ea8f/add358d55534468a8edb1da0867d6bea [2021-11-03 04:06:50,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:50,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:50,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:50,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:50,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:50,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:50" (1/1) ... [2021-11-03 04:06:50,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5251705f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:50, skipping insertion in model container [2021-11-03 04:06:50,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:50" (1/1) ... [2021-11-03 04:06:50,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:50,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:50,613 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-03 04:06:50,623 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-03 04:06:50,651 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:50,670 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:51,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:52,203 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:52,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:52,207 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:52,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:52,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:52,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:52,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:52,224 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:52,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:52,462 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:52,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:52,792 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:06:52,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:52,846 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-03 04:06:52,846 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-03 04:06:52,850 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:52,851 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:52,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:52,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:52,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:52,964 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:52,965 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:52,966 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:52,966 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:52,967 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:52,967 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:52,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:53,024 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:53,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:53,224 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:06:53,249 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-03 04:06:53,250 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_00f24298-ef58-4d95-a044-afe3a2297866/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-03 04:06:53,251 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:53,252 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:53,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,352 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:53,353 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:53,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:53,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:53,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:53,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:53,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:53,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:53,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:53,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:53,386 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:53,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:53,872 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:06:53,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53 WrapperNode [2021-11-03 04:06:53,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:53,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:53,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:06:53,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:06:53,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:54,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:06:54,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:06:54,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:06:54,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:06:54,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:06:54,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:06:54,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:06:54,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:54,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:54,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:06:54,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:06:54,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:06:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-03 04:06:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:06:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:06:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:06:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:07:09,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:07:09,036 INFO L299 CfgBuilder]: Removed 91 assume(true) statements. [2021-11-03 04:07:09,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:09 BoogieIcfgContainer [2021-11-03 04:07:09,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:07:09,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:07:09,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:07:09,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:07:09,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:06:50" (1/3) ... [2021-11-03 04:07:09,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd3cad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:09, skipping insertion in model container [2021-11-03 04:07:09,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (2/3) ... [2021-11-03 04:07:09,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd3cad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:09, skipping insertion in model container [2021-11-03 04:07:09,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:09" (3/3) ... [2021-11-03 04:07:09,050 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be64_harness.i [2021-11-03 04:07:09,057 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:07:09,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-03 04:07:09,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:07:09,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:07:09,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-03 04:07:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:07:09,179 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:09,180 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] [2021-11-03 04:07:09,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2035654772, now seen corresponding path program 1 times [2021-11-03 04:07:09,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:09,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319255112] [2021-11-03 04:07:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:09,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:09,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:09,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:09,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:07:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:13,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:07:13,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:13,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:13,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:13,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319255112] [2021-11-03 04:07:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319255112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:13,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:13,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:07:13,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219529414] [2021-11-03 04:07:13,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:07:13,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:14,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:07:14,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:07:14,009 INFO L87 Difference]: Start difference. First operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 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 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:14,039 INFO L93 Difference]: Finished difference Result 372 states and 517 transitions. [2021-11-03 04:07:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:07:14,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-03 04:07:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:14,051 INFO L225 Difference]: With dead ends: 372 [2021-11-03 04:07:14,051 INFO L226 Difference]: Without dead ends: 183 [2021-11-03 04:07:14,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:07:14,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-03 04:07:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-03 04:07:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 182 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:14,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 234 transitions. [2021-11-03 04:07:14,097 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 234 transitions. Word has length 41 [2021-11-03 04:07:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:14,098 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 234 transitions. [2021-11-03 04:07:14,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:14,098 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 234 transitions. [2021-11-03 04:07:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:07:14,100 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:14,100 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] [2021-11-03 04:07:14,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:14,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:14,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:14,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:14,302 INFO L85 PathProgramCache]: Analyzing trace with hash 911785488, now seen corresponding path program 1 times [2021-11-03 04:07:14,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:14,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934013785] [2021-11-03 04:07:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:14,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:14,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:14,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:07:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:18,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:07:18,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:18,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:19,088 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:19,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934013785] [2021-11-03 04:07:19,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934013785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:19,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:19,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:07:19,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580554729] [2021-11-03 04:07:19,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:19,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:19,092 INFO L87 Difference]: Start difference. First operand 183 states and 234 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:19,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:19,532 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2021-11-03 04:07:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:19,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-03 04:07:19,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:19,535 INFO L225 Difference]: With dead ends: 340 [2021-11-03 04:07:19,535 INFO L226 Difference]: Without dead ends: 183 [2021-11-03 04:07:19,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-03 04:07:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-03 04:07:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 182 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 231 transitions. [2021-11-03 04:07:19,549 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 231 transitions. Word has length 41 [2021-11-03 04:07:19,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:19,550 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 231 transitions. [2021-11-03 04:07:19,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 231 transitions. [2021-11-03 04:07:19,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:07:19,553 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:19,553 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] [2021-11-03 04:07:19,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:19,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:19,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1949548946, now seen corresponding path program 1 times [2021-11-03 04:07:19,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:19,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560715657] [2021-11-03 04:07:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:19,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:19,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:19,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:19,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:07:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:24,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:07:24,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:24,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:24,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:24,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560715657] [2021-11-03 04:07:24,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560715657] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:24,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:24,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:07:24,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589001473] [2021-11-03 04:07:24,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:24,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:24,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:24,517 INFO L87 Difference]: Start difference. First operand 183 states and 231 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:25,028 INFO L93 Difference]: Finished difference Result 401 states and 514 transitions. [2021-11-03 04:07:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-03 04:07:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:25,031 INFO L225 Difference]: With dead ends: 401 [2021-11-03 04:07:25,032 INFO L226 Difference]: Without dead ends: 243 [2021-11-03 04:07:25,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-03 04:07:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 195. [2021-11-03 04:07:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 184 states have (on average 1.3206521739130435) internal successors, (243), 194 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 243 transitions. [2021-11-03 04:07:25,049 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 243 transitions. Word has length 53 [2021-11-03 04:07:25,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:25,050 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 243 transitions. [2021-11-03 04:07:25,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 243 transitions. [2021-11-03 04:07:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:07:25,052 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:25,053 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] [2021-11-03 04:07:25,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:25,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:25,254 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:25,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash -920189648, now seen corresponding path program 1 times [2021-11-03 04:07:25,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:25,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825406428] [2021-11-03 04:07:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:25,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:25,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:25,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:25,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:07:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:29,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:07:29,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:29,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:07:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:30,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:30,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 04:07:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:30,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:30,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825406428] [2021-11-03 04:07:30,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825406428] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:30,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:30,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 04:07:30,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181787836] [2021-11-03 04:07:30,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:07:30,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:30,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:07:30,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:07:30,971 INFO L87 Difference]: Start difference. First operand 195 states and 243 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:40,289 INFO L93 Difference]: Finished difference Result 426 states and 537 transitions. [2021-11-03 04:07:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:07:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 53 [2021-11-03 04:07:40,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:40,293 INFO L225 Difference]: With dead ends: 426 [2021-11-03 04:07:40,293 INFO L226 Difference]: Without dead ends: 258 [2021-11-03 04:07:40,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-03 04:07:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-03 04:07:40,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 198. [2021-11-03 04:07:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 187 states have (on average 1.320855614973262) internal successors, (247), 197 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2021-11-03 04:07:40,310 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 53 [2021-11-03 04:07:40,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:40,310 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2021-11-03 04:07:40,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2021-11-03 04:07:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:07:40,313 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:40,313 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 04:07:40,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:40,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:40,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:40,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1968076693, now seen corresponding path program 1 times [2021-11-03 04:07:40,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:40,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868721738] [2021-11-03 04:07:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:40,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:40,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:40,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:40,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:07:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:44,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:07:44,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:45,361 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:07:45,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:07:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:45,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:46,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:46,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:46,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868721738] [2021-11-03 04:07:46,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868721738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:46,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:46,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:07:46,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704515047] [2021-11-03 04:07:46,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:07:46,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:46,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:07:46,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:07:46,160 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 04:07:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:58,300 INFO L93 Difference]: Finished difference Result 598 states and 742 transitions. [2021-11-03 04:07:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:58,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 60 [2021-11-03 04:07:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:58,306 INFO L225 Difference]: With dead ends: 598 [2021-11-03 04:07:58,306 INFO L226 Difference]: Without dead ends: 420 [2021-11-03 04:07:58,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 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 04:07:58,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-11-03 04:07:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 240. [2021-11-03 04:07:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 229 states have (on average 1.314410480349345) internal successors, (301), 239 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 301 transitions. [2021-11-03 04:07:58,323 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 301 transitions. Word has length 60 [2021-11-03 04:07:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:58,331 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 301 transitions. [2021-11-03 04:07:58,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 04:07:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 301 transitions. [2021-11-03 04:07:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:07:58,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:58,334 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 04:07:58,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:58,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:58,534 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:07:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2078744109, now seen corresponding path program 1 times [2021-11-03 04:07:58,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:58,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654752224] [2021-11-03 04:07:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:58,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:58,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:58,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:58,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:08:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:08:02,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:08:02,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:08:03,127 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:08:03,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:08:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:03,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:08:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:04,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:08:04,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654752224] [2021-11-03 04:08:04,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654752224] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:08:04,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:08:04,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 04:08:04,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930208156] [2021-11-03 04:08:04,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:08:04,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:08:04,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:08:04,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:08:04,437 INFO L87 Difference]: Start difference. First operand 240 states and 301 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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 04:08:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:08:28,384 INFO L93 Difference]: Finished difference Result 741 states and 882 transitions. [2021-11-03 04:08:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:08:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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 60 [2021-11-03 04:08:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:08:28,391 INFO L225 Difference]: With dead ends: 741 [2021-11-03 04:08:28,391 INFO L226 Difference]: Without dead ends: 463 [2021-11-03 04:08:28,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:08:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-11-03 04:08:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 233. [2021-11-03 04:08:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 222 states have (on average 1.2567567567567568) internal successors, (279), 232 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 279 transitions. [2021-11-03 04:08:28,410 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 279 transitions. Word has length 60 [2021-11-03 04:08:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:08:28,411 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 279 transitions. [2021-11-03 04:08:28,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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 04:08:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 279 transitions. [2021-11-03 04:08:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:08:28,413 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:08:28,413 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] [2021-11-03 04:08:28,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:08:28,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:08:28,636 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:08:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:08:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash 242136391, now seen corresponding path program 1 times [2021-11-03 04:08:28,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:08:28,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962141155] [2021-11-03 04:08:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:08:28,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:08:28,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:08:28,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:08:28,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:08:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:08:32,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:08:32,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:08:33,733 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:08:33,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-03 04:08:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:33,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:08:47,247 WARN L207 SmtUtils]: Spent 12.74 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:08:47,253 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:08:47,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772 [2021-11-03 04:17:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:48,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:48,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962141155] [2021-11-03 04:17:48,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962141155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:48,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:48,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-11-03 04:17:48,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409005189] [2021-11-03 04:17:48,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:17:48,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:48,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:17:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:17:48,666 INFO L87 Difference]: Start difference. First operand 233 states and 279 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:57,778 INFO L93 Difference]: Finished difference Result 662 states and 789 transitions. [2021-11-03 04:17:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:17:57,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 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 68 [2021-11-03 04:17:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:57,781 INFO L225 Difference]: With dead ends: 662 [2021-11-03 04:17:57,781 INFO L226 Difference]: Without dead ends: 465 [2021-11-03 04:17:57,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:17:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-11-03 04:17:57,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 241. [2021-11-03 04:17:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 230 states have (on average 1.2478260869565216) internal successors, (287), 240 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:57,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 287 transitions. [2021-11-03 04:17:57,795 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 287 transitions. Word has length 68 [2021-11-03 04:17:57,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:57,796 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 287 transitions. [2021-11-03 04:17:57,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 287 transitions. [2021-11-03 04:17:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:17:57,797 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:57,797 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] [2021-11-03 04:17:57,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:58,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:58,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:17:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash -110951991, now seen corresponding path program 1 times [2021-11-03 04:17:58,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:58,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977528773] [2021-11-03 04:17:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:58,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:58,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:58,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:58,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:18:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:02,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:18:02,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:02,343 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 17 treesize of output 9 [2021-11-03 04:18:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:02,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:02,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:02,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977528773] [2021-11-03 04:18:02,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977528773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:02,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:02,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:18:02,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032458378] [2021-11-03 04:18:02,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:18:02,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:02,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:18:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:18:02,605 INFO L87 Difference]: Start difference. First operand 241 states and 287 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:02,643 INFO L93 Difference]: Finished difference Result 409 states and 491 transitions. [2021-11-03 04:18:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:18:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2021-11-03 04:18:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:02,653 INFO L225 Difference]: With dead ends: 409 [2021-11-03 04:18:02,653 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 04:18:02,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:18:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 04:18:02,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 04:18:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 230 states have (on average 1.2434782608695651) internal successors, (286), 240 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 286 transitions. [2021-11-03 04:18:02,665 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 286 transitions. Word has length 68 [2021-11-03 04:18:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:02,665 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 286 transitions. [2021-11-03 04:18:02,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 286 transitions. [2021-11-03 04:18:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:18:02,666 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:02,667 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] [2021-11-03 04:18:02,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:18:02,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:02,883 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:18:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash 107902727, now seen corresponding path program 1 times [2021-11-03 04:18:02,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:02,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887530349] [2021-11-03 04:18:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:02,886 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:02,887 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:02,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:18:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:07,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:18:07,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:08,275 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-03 04:18:08,275 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 197 treesize of output 59 [2021-11-03 04:18:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:08,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:18,229 WARN L207 SmtUtils]: Spent 9.37 s on a formula simplification. DAG size of input: 523 DAG size of output: 299 [2021-11-03 04:18:18,231 INFO L354 Elim1Store]: treesize reduction 756, result has 51.9 percent of original size [2021-11-03 04:18:18,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 134 treesize of output 858 [2021-11-03 04:20:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:01,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:01,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887530349] [2021-11-03 04:20:01,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887530349] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:01,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:01,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 04:20:01,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079137295] [2021-11-03 04:20:01,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:20:01,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:20:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:20:01,341 INFO L87 Difference]: Start difference. First operand 241 states and 286 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:21,433 INFO L93 Difference]: Finished difference Result 657 states and 766 transitions. [2021-11-03 04:20:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 04:20:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 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 68 [2021-11-03 04:20:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:21,439 INFO L225 Difference]: With dead ends: 657 [2021-11-03 04:20:21,439 INFO L226 Difference]: Without dead ends: 516 [2021-11-03 04:20:21,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-11-03 04:20:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-11-03 04:20:21,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 255. [2021-11-03 04:20:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 244 states have (on average 1.2336065573770492) internal successors, (301), 254 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 301 transitions. [2021-11-03 04:20:21,454 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 301 transitions. Word has length 68 [2021-11-03 04:20:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:21,455 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 301 transitions. [2021-11-03 04:20:21,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 301 transitions. [2021-11-03 04:20:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:20:21,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:21,456 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] [2021-11-03 04:20:21,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 04:20:21,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:21,680 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:20:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:21,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1882910089, now seen corresponding path program 1 times [2021-11-03 04:20:21,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:21,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438703701] [2021-11-03 04:20:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:21,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:21,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:21,686 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:21,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:20:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:26,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1894 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:20:26,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:26,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:26,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:26,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438703701] [2021-11-03 04:20:26,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438703701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:26,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:26,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:20:26,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250932292] [2021-11-03 04:20:26,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:20:26,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:26,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:20:26,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:20:26,873 INFO L87 Difference]: Start difference. First operand 255 states and 301 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:27,458 INFO L93 Difference]: Finished difference Result 336 states and 393 transitions. [2021-11-03 04:20:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:20:27,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2021-11-03 04:20:27,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:27,460 INFO L225 Difference]: With dead ends: 336 [2021-11-03 04:20:27,460 INFO L226 Difference]: Without dead ends: 255 [2021-11-03 04:20:27,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:20:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-03 04:20:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-11-03 04:20:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 244 states have (on average 1.2254098360655739) internal successors, (299), 254 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 299 transitions. [2021-11-03 04:20:27,473 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 299 transitions. Word has length 68 [2021-11-03 04:20:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:27,473 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 299 transitions. [2021-11-03 04:20:27,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 299 transitions. [2021-11-03 04:20:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 04:20:27,474 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:27,475 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] [2021-11-03 04:20:27,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:27,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:27,688 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 04:20:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:27,688 INFO L85 PathProgramCache]: Analyzing trace with hash 931496092, now seen corresponding path program 1 times [2021-11-03 04:20:27,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:27,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939735958] [2021-11-03 04:20:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:27,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:27,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:27,692 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:27,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f24298-ef58-4d95-a044-afe3a2297866/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:20:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:32,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1905 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 04:20:32,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:33,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:43,978 WARN L207 SmtUtils]: Spent 9.94 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 04:20:43,980 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 04:20:43,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771