./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_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_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/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_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/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_fced1718-7f1b-49df-9a90-417f522011c5/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 b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:39:23,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:39:23,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:39:23,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:39:23,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:39:23,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:39:23,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:39:23,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:39:23,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:39:23,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:39:23,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:39:23,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:39:23,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:39:23,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:39:23,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:39:23,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:39:23,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:39:23,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:39:23,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:39:23,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:39:23,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:39:23,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:39:23,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:39:23,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:39:23,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:39:23,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:39:23,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:39:23,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:39:23,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:39:23,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:39:23,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:39:23,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:39:23,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:39:23,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:39:23,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:39:23,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:39:23,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:39:23,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:39:23,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:39:23,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:39:23,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:39:23,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:39:23,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:39:23,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:39:23,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:39:23,595 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:39:23,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:39:23,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:39:23,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:39:23,596 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:39:23,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:39:23,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:39:23,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:39:23,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:39:23,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:39:23,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:39:23,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:39:23,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:39:23,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:39:23,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:39:23,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:39:23,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:39:23,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:39:23,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:39:23,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:39:23,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:39:23,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:39:23,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:39:23,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:39:23,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:39:23,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:39:23,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:39:23,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:39:23,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:39:23,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:39:23,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:39:23,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:39:23,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:39:23,601 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_fced1718-7f1b-49df-9a90-417f522011c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 [2021-11-03 04:39:23,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:39:23,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:39:23,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:39:23,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:39:23,876 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:39:23,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-03 04:39:23,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/30151941d/f040effebd0c4dcfb448fe134f7a4874/FLAG3868f784a [2021-11-03 04:39:24,754 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:39:24,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-03 04:39:24,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/30151941d/f040effebd0c4dcfb448fe134f7a4874/FLAG3868f784a [2021-11-03 04:39:25,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/30151941d/f040effebd0c4dcfb448fe134f7a4874 [2021-11-03 04:39:25,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:39:25,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:39:25,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:39:25,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:39:25,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:39:25,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:39:25" (1/1) ... [2021-11-03 04:39:25,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ccf27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:25, skipping insertion in model container [2021-11-03 04:39:25,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:39:25" (1/1) ... [2021-11-03 04:39:25,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:39:25,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:39:25,734 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-03 04:39:25,743 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-03 04:39:25,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:39:25,786 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:39:26,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:26,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:27,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:39:27,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:39:27,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:39:27,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:39:27,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:39:27,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:39:27,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:39:27,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:39:27,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:39:27,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:39:27,268 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:39:27,283 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:39:27,289 INFO L168 Benchmark]: Toolchain (without parser) took 2002.74 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 83.6 MB in the beginning and 104.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:27,289 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 109.1 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:39:27,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2000.68 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 83.6 MB in the beginning and 104.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:27,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 109.1 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2000.68 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 83.6 MB in the beginning and 104.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 40.8 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_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/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_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/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_fced1718-7f1b-49df-9a90-417f522011c5/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 b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:39:29,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:39:29,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:39:29,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:39:29,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:39:29,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:39:29,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:39:29,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:39:29,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:39:29,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:39:29,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:39:29,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:39:29,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:39:29,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:39:29,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:39:29,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:39:29,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:39:29,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:39:29,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:39:29,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:39:29,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:39:29,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:39:29,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:39:29,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:39:29,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:39:29,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:39:29,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:39:29,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:39:29,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:39:29,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:39:29,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:39:29,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:39:29,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:39:29,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:39:29,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:39:29,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:39:29,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:39:29,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:39:29,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:39:29,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:39:29,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:39:29,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:39:29,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:39:29,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:39:29,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:39:29,535 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:39:29,536 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:39:29,536 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:39:29,539 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:39:29,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:39:29,539 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:39:29,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:39:29,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:39:29,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:39:29,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:39:29,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:39:29,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:39:29,542 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:39:29,543 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:39:29,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:39:29,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:39:29,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:39:29,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:39:29,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:39:29,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:39:29,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:39:29,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:39:29,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:39:29,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:39:29,545 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:39:29,545 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:39:29,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:39:29,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:39:29,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:39:29,546 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_fced1718-7f1b-49df-9a90-417f522011c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 [2021-11-03 04:39:29,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:39:29,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:39:29,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:39:29,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:39:29,987 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:39:29,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-03 04:39:30,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/d9141e098/bde97b8b8f5d4551af82963eb12cb8d7/FLAG44aad6080 [2021-11-03 04:39:30,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:39:30,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-03 04:39:31,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/d9141e098/bde97b8b8f5d4551af82963eb12cb8d7/FLAG44aad6080 [2021-11-03 04:39:31,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/data/d9141e098/bde97b8b8f5d4551af82963eb12cb8d7 [2021-11-03 04:39:31,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:39:31,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:39:31,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:39:31,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:39:31,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:39:31,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:39:31" (1/1) ... [2021-11-03 04:39:31,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3067e4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:31, skipping insertion in model container [2021-11-03 04:39:31,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:39:31" (1/1) ... [2021-11-03 04:39:31,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:39:31,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:39:31,535 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-03 04:39:31,542 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-03 04:39:31,569 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:39:31,575 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:39:32,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:32,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,173 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:39:33,175 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:39:33,176 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:39:33,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:39:33,179 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:39:33,179 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:39:33,180 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:39:33,181 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:39:33,182 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:39:33,183 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:39:33,343 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:39:33,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:39:33,668 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:39:33,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:39:33,721 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-03 04:39:33,722 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-03 04:39:33,725 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:39:33,727 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:39:33,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:39:33,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:39:33,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:39:33,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:39:33,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:39:33,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:39:33,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:39:33,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:39:33,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:39:33,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:39:33,923 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:39:33,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:33,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:39:34,071 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:39:34,095 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-03 04:39:34,095 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_fced1718-7f1b-49df-9a90-417f522011c5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-03 04:39:34,096 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:39:34,097 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:39:34,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,174 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:39:34,174 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:39:34,175 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:39:34,176 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:39:34,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:39:34,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:39:34,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:39:34,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:39:34,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:39:34,179 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:39:34,202 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:39:34,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:39:34,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:39:34,586 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:39:34,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34 WrapperNode [2021-11-03 04:39:34,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:39:34,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:39:34,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:39:34,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:39:34,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:39:34,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:39:34,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:39:34,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:39:34,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:39:34,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:39:34,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:39:34,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:39:34,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (1/1) ... [2021-11-03 04:39:34,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:39:35,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:39:35,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:39:35,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:39:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:39:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:39:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:39:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:39:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:39:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:39:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:39:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:39:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:39:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:39:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:39:51,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:39:51,093 INFO L299 CfgBuilder]: Removed 228 assume(true) statements. [2021-11-03 04:39:51,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:39:51 BoogieIcfgContainer [2021-11-03 04:39:51,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:39:51,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:39:51,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:39:51,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:39:51,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:39:31" (1/3) ... [2021-11-03 04:39:51,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f012a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:39:51, skipping insertion in model container [2021-11-03 04:39:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:39:34" (2/3) ... [2021-11-03 04:39:51,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f012a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:39:51, skipping insertion in model container [2021-11-03 04:39:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:39:51" (3/3) ... [2021-11-03 04:39:51,104 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_dynamic_harness.i [2021-11-03 04:39:51,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:39:51,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-03 04:39:51,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:39:51,162 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 04:39:51,162 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-03 04:39:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 389 states have (on average 1.4601542416452442) internal successors, (568), 409 states have internal predecessors, (568), 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 04:39:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:39:51,193 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:51,194 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:39:51,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:39:51,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:51,200 INFO L85 PathProgramCache]: Analyzing trace with hash -127780390, now seen corresponding path program 1 times [2021-11-03 04:39:51,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:51,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647313363] [2021-11-03 04:39:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:51,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:51,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:51,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:39:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:55,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:39:55,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:39:55,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:55,721 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 04:39:55,721 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:55,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647313363] [2021-11-03 04:39:55,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647313363] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:39:55,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:39:55,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:39:55,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770336145] [2021-11-03 04:39:55,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:39:55,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:39:55,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:39:55,748 INFO L87 Difference]: Start difference. First operand has 410 states, 389 states have (on average 1.4601542416452442) internal successors, (568), 409 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:39:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:55,797 INFO L93 Difference]: Finished difference Result 813 states and 1127 transitions. [2021-11-03 04:39:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:39:55,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-11-03 04:39:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:55,812 INFO L225 Difference]: With dead ends: 813 [2021-11-03 04:39:55,818 INFO L226 Difference]: Without dead ends: 405 [2021-11-03 04:39:55,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 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 04:39:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-03 04:39:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-11-03 04:39:55,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 385 states have (on average 1.3324675324675326) internal successors, (513), 404 states have internal predecessors, (513), 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 04:39:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 513 transitions. [2021-11-03 04:39:55,886 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 513 transitions. Word has length 39 [2021-11-03 04:39:55,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:55,887 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 513 transitions. [2021-11-03 04:39:55,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:39:55,887 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 513 transitions. [2021-11-03 04:39:55,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:39:55,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:39:55,889 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 04:39:55,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:56,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:39:56,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:39:56,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:39:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1892452164, now seen corresponding path program 1 times [2021-11-03 04:39:56,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:39:56,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640064472] [2021-11-03 04:39:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:56,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:39:56,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:39:56,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:39:56,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:40:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:00,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:40:00,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:00,427 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 04:40:00,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:00,621 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 04:40:00,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:00,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640064472] [2021-11-03 04:40:00,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640064472] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:00,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:00,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:40:00,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408217997] [2021-11-03 04:40:00,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:40:00,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:00,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:40:00,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:40:00,624 INFO L87 Difference]: Start difference. First operand 405 states and 513 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 04:40:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:00,956 INFO L93 Difference]: Finished difference Result 787 states and 995 transitions. [2021-11-03 04:40:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:40:00,957 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 04:40:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:00,960 INFO L225 Difference]: With dead ends: 787 [2021-11-03 04:40:00,960 INFO L226 Difference]: Without dead ends: 405 [2021-11-03 04:40:00,961 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 04:40:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-03 04:40:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-11-03 04:40:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 385 states have (on average 1.3246753246753247) internal successors, (510), 404 states have internal predecessors, (510), 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 04:40:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 510 transitions. [2021-11-03 04:40:00,986 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 510 transitions. Word has length 41 [2021-11-03 04:40:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:00,987 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 510 transitions. [2021-11-03 04:40:00,987 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 04:40:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 510 transitions. [2021-11-03 04:40:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:40:00,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:00,990 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 04:40:01,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:01,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:01,217 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:01,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1022569822, now seen corresponding path program 1 times [2021-11-03 04:40:01,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:01,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146324260] [2021-11-03 04:40:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:01,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:01,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:01,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:01,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:40:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:05,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:40:05,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:05,489 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 04:40:05,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:05,682 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 04:40:05,682 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:05,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146324260] [2021-11-03 04:40:05,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146324260] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:05,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:05,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:40:05,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160760333] [2021-11-03 04:40:05,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:40:05,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:05,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:40:05,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:40:05,685 INFO L87 Difference]: Start difference. First operand 405 states and 510 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 04:40:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:06,253 INFO L93 Difference]: Finished difference Result 950 states and 1220 transitions. [2021-11-03 04:40:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:40:06,255 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 04:40:06,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:06,258 INFO L225 Difference]: With dead ends: 950 [2021-11-03 04:40:06,258 INFO L226 Difference]: Without dead ends: 559 [2021-11-03 04:40:06,259 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 04:40:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-11-03 04:40:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 419. [2021-11-03 04:40:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 399 states have (on average 1.31328320802005) internal successors, (524), 418 states have internal predecessors, (524), 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 04:40:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 524 transitions. [2021-11-03 04:40:06,293 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 524 transitions. Word has length 53 [2021-11-03 04:40:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:06,293 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 524 transitions. [2021-11-03 04:40:06,294 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 04:40:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 524 transitions. [2021-11-03 04:40:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:40:06,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:06,296 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 04:40:06,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:40:06,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:06,501 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:06,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:06,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1446216544, now seen corresponding path program 1 times [2021-11-03 04:40:06,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:06,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188204105] [2021-11-03 04:40:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:06,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:06,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:06,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:40:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:10,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:40:10,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:10,772 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 04:40:10,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:10,950 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 04:40:10,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:10,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188204105] [2021-11-03 04:40:10,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188204105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:10,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:10,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:40:10,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973027533] [2021-11-03 04:40:10,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:40:10,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:10,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:40:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:40:10,953 INFO L87 Difference]: Start difference. First operand 419 states and 524 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 04:40:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:11,923 INFO L93 Difference]: Finished difference Result 954 states and 1213 transitions. [2021-11-03 04:40:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:40:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 04:40:11,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:11,927 INFO L225 Difference]: With dead ends: 954 [2021-11-03 04:40:11,927 INFO L226 Difference]: Without dead ends: 559 [2021-11-03 04:40:11,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:40:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-11-03 04:40:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 433. [2021-11-03 04:40:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 413 states have (on average 1.3026634382566586) internal successors, (538), 432 states have internal predecessors, (538), 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 04:40:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 538 transitions. [2021-11-03 04:40:11,942 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 538 transitions. Word has length 53 [2021-11-03 04:40:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:11,943 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 538 transitions. [2021-11-03 04:40:11,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 04:40:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 538 transitions. [2021-11-03 04:40:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:40:11,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:11,945 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 04:40:11,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:12,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:12,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:12,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1497261274, now seen corresponding path program 1 times [2021-11-03 04:40:12,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:12,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397668854] [2021-11-03 04:40:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:12,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:12,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:12,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:12,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:40:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:16,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:40:16,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:16,441 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 04:40:16,832 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 04:40:16,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:17,146 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 04:40:17,372 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 04:40:17,372 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:17,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397668854] [2021-11-03 04:40:17,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397668854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:17,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:17,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-03 04:40:17,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345808657] [2021-11-03 04:40:17,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:40:17,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:40:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:40:17,374 INFO L87 Difference]: Start difference. First operand 433 states and 538 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:40:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:29,266 INFO L93 Difference]: Finished difference Result 888 states and 1109 transitions. [2021-11-03 04:40:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:40:29,267 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-03 04:40:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:29,270 INFO L225 Difference]: With dead ends: 888 [2021-11-03 04:40:29,270 INFO L226 Difference]: Without dead ends: 481 [2021-11-03 04:40:29,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2021-11-03 04:40:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-03 04:40:29,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 431. [2021-11-03 04:40:29,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.3017031630170317) internal successors, (535), 430 states have internal predecessors, (535), 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 04:40:29,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 535 transitions. [2021-11-03 04:40:29,286 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 535 transitions. Word has length 53 [2021-11-03 04:40:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:29,287 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 535 transitions. [2021-11-03 04:40:29,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:40:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 535 transitions. [2021-11-03 04:40:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:40:29,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:29,289 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:40:29,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:29,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:29,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1264130726, now seen corresponding path program 1 times [2021-11-03 04:40:29,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:29,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753207022] [2021-11-03 04:40:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:29,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:29,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:29,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:29,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:40:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:33,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:40:33,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:33,679 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 04:40:33,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:33,876 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 04:40:33,877 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:33,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753207022] [2021-11-03 04:40:33,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753207022] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:33,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:33,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:40:33,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109829210] [2021-11-03 04:40:33,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:40:33,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:33,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:40:33,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:40:33,879 INFO L87 Difference]: Start difference. First operand 431 states and 535 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 04:40:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:35,114 INFO L93 Difference]: Finished difference Result 1005 states and 1234 transitions. [2021-11-03 04:40:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:40:35,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-03 04:40:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:35,119 INFO L225 Difference]: With dead ends: 1005 [2021-11-03 04:40:35,119 INFO L226 Difference]: Without dead ends: 592 [2021-11-03 04:40:35,120 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:40:35,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-11-03 04:40:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 431. [2021-11-03 04:40:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.29683698296837) internal successors, (533), 430 states have internal predecessors, (533), 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 04:40:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 533 transitions. [2021-11-03 04:40:35,137 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 533 transitions. Word has length 57 [2021-11-03 04:40:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:35,137 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 533 transitions. [2021-11-03 04:40:35,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 04:40:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 533 transitions. [2021-11-03 04:40:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:40:35,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:35,139 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] [2021-11-03 04:40:35,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:35,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:35,363 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:35,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1449621141, now seen corresponding path program 1 times [2021-11-03 04:40:35,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:35,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349669941] [2021-11-03 04:40:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:35,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:35,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:35,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:40:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:39,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:40:39,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:39,715 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 04:40:39,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:39,876 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 04:40:39,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:39,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349669941] [2021-11-03 04:40:39,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349669941] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:39,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:39,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:40:39,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808278104] [2021-11-03 04:40:39,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:40:39,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:39,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:40:39,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:40:39,878 INFO L87 Difference]: Start difference. First operand 431 states and 533 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 04:40:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:40,148 INFO L93 Difference]: Finished difference Result 817 states and 1010 transitions. [2021-11-03 04:40:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:40:40,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2021-11-03 04:40:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:40,152 INFO L225 Difference]: With dead ends: 817 [2021-11-03 04:40:40,152 INFO L226 Difference]: Without dead ends: 431 [2021-11-03 04:40:40,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 04:40:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-03 04:40:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-11-03 04:40:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.2919708029197081) internal successors, (531), 430 states have internal predecessors, (531), 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 04:40:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 531 transitions. [2021-11-03 04:40:40,168 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 531 transitions. Word has length 59 [2021-11-03 04:40:40,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:40,169 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 531 transitions. [2021-11-03 04:40:40,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 04:40:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 531 transitions. [2021-11-03 04:40:40,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:40:40,170 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:40,170 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] [2021-11-03 04:40:40,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:40:40,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:40,383 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1668581274, now seen corresponding path program 1 times [2021-11-03 04:40:40,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:40,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336485096] [2021-11-03 04:40:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:40,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:40,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:40,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:40,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:40:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:44,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:40:44,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:45,031 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 04:40:45,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:40:45,251 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 04:40:45,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:40:45,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336485096] [2021-11-03 04:40:45,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336485096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:40:45,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:40:45,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:40:45,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373359457] [2021-11-03 04:40:45,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:40:45,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:40:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:40:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:40:45,253 INFO L87 Difference]: Start difference. First operand 431 states and 531 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 04:40:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:40:45,874 INFO L93 Difference]: Finished difference Result 783 states and 963 transitions. [2021-11-03 04:40:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:40:45,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2021-11-03 04:40:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:40:45,877 INFO L225 Difference]: With dead ends: 783 [2021-11-03 04:40:45,878 INFO L226 Difference]: Without dead ends: 431 [2021-11-03 04:40:45,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:40:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-03 04:40:45,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-11-03 04:40:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.2798053527980535) internal successors, (526), 430 states have internal predecessors, (526), 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 04:40:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 526 transitions. [2021-11-03 04:40:45,898 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 526 transitions. Word has length 61 [2021-11-03 04:40:45,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:40:45,899 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 526 transitions. [2021-11-03 04:40:45,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 04:40:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 526 transitions. [2021-11-03 04:40:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:40:45,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:40:45,900 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] [2021-11-03 04:40:45,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:40:46,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:40:46,115 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:40:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:40:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash 608472481, now seen corresponding path program 1 times [2021-11-03 04:40:46,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:40:46,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896082840] [2021-11-03 04:40:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:40:46,121 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:40:46,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:40:46,122 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:40:46,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:40:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:40:50,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 04:40:50,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:40:51,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:40:51,606 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 04:40:51,712 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 04:40:51,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:41:02,969 WARN L207 SmtUtils]: Spent 10.32 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:41:02,975 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:41:02,976 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 04:52:21,164 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 04:52:21,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:52:21,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896082840] [2021-11-03 04:52:21,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896082840] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:52:21,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:52:21,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-11-03 04:52:21,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260064745] [2021-11-03 04:52:21,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:52:21,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:52:21,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:52:21,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:52:21,166 INFO L87 Difference]: Start difference. First operand 431 states and 526 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 04:52:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:52:42,404 INFO L93 Difference]: Finished difference Result 967 states and 1167 transitions. [2021-11-03 04:52:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:52:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 63 [2021-11-03 04:52:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:52:42,410 INFO L225 Difference]: With dead ends: 967 [2021-11-03 04:52:42,410 INFO L226 Difference]: Without dead ends: 828 [2021-11-03 04:52:42,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:52:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2021-11-03 04:52:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 705. [2021-11-03 04:52:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 685 states have (on average 1.294890510948905) internal successors, (887), 704 states have internal predecessors, (887), 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 04:52:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 887 transitions. [2021-11-03 04:52:42,442 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 887 transitions. Word has length 63 [2021-11-03 04:52:42,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:52:42,443 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 887 transitions. [2021-11-03 04:52:42,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 04:52:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 887 transitions. [2021-11-03 04:52:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:52:42,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:52:42,444 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] [2021-11-03 04:52:42,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 04:52:42,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:52:42,660 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:52:42,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:52:42,662 INFO L85 PathProgramCache]: Analyzing trace with hash -655448616, now seen corresponding path program 1 times [2021-11-03 04:52:42,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:52:42,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204579123] [2021-11-03 04:52:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:52:42,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:52:42,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:52:42,677 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:52:42,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:52:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:52:47,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:52:47,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:52:47,230 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 04:52:47,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:52:47,406 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 04:52:47,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:52:47,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204579123] [2021-11-03 04:52:47,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204579123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:52:47,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:52:47,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:52:47,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134138987] [2021-11-03 04:52:47,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:52:47,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:52:47,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:52:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:52:47,408 INFO L87 Difference]: Start difference. First operand 705 states and 887 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 04:52:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:52:47,701 INFO L93 Difference]: Finished difference Result 1293 states and 1600 transitions. [2021-11-03 04:52:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:52:47,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 63 [2021-11-03 04:52:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:52:47,711 INFO L225 Difference]: With dead ends: 1293 [2021-11-03 04:52:47,711 INFO L226 Difference]: Without dead ends: 1205 [2021-11-03 04:52:47,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:52:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-11-03 04:52:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 709. [2021-11-03 04:52:47,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 689 states have (on average 1.2931785195936139) internal successors, (891), 708 states have internal predecessors, (891), 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 04:52:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 891 transitions. [2021-11-03 04:52:47,749 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 891 transitions. Word has length 63 [2021-11-03 04:52:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:52:47,750 INFO L470 AbstractCegarLoop]: Abstraction has 709 states and 891 transitions. [2021-11-03 04:52:47,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 04:52:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 891 transitions. [2021-11-03 04:52:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:52:47,751 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:52:47,751 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] [2021-11-03 04:52:47,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:52:47,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:52:47,975 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:52:47,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:52:47,975 INFO L85 PathProgramCache]: Analyzing trace with hash -655437693, now seen corresponding path program 1 times [2021-11-03 04:52:47,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:52:47,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136551702] [2021-11-03 04:52:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:52:47,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:52:47,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:52:47,981 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:52:48,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fced1718-7f1b-49df-9a90-417f522011c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process