./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_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_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/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_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/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_31af9456-7b20-4608-be89-1c1ce4a6edb5/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 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:32:22,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:32:22,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:32:22,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:32:22,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:32:22,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:32:22,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:32:22,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:32:22,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:32:22,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:32:22,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:32:22,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:32:22,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:32:22,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:32:22,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:32:22,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:32:22,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:32:22,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:32:22,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:32:22,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:32:22,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:32:22,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:32:22,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:32:22,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:32:22,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:32:22,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:32:22,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:32:22,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:32:22,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:32:22,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:32:22,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:32:22,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:32:22,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:32:22,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:32:22,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:32:22,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:32:22,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:32:22,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:32:22,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:32:22,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:32:22,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:32:22,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:32:22,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:32:22,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:32:22,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:32:22,878 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:32:22,879 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:32:22,879 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:32:22,879 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:32:22,879 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:32:22,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:32:22,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:32:22,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:32:22,880 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:32:22,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:32:22,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:32:22,881 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:32:22,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:32:22,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:32:22,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:32:22,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:32:22,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:32:22,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:32:22,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:32:22,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:32:22,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:32:22,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:32:22,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:32:22,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:32:22,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:22,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:32:22,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:32:22,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:32:22,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:32:22,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:32:22,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:32:22,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:32:22,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:32:22,911 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2021-11-03 05:32:23,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:32:23,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:32:23,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:32:23,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:32:23,183 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:32:23,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-03 05:32:23,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/bc7e8f313/0bf4091e4b174eb5b902eb529caa9c53/FLAGec7a562be [2021-11-03 05:32:24,181 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:32:24,181 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-03 05:32:24,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/bc7e8f313/0bf4091e4b174eb5b902eb529caa9c53/FLAGec7a562be [2021-11-03 05:32:24,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/bc7e8f313/0bf4091e4b174eb5b902eb529caa9c53 [2021-11-03 05:32:24,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:32:24,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:32:24,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:24,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:32:24,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:32:24,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:24" (1/1) ... [2021-11-03 05:32:24,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db702eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:24, skipping insertion in model container [2021-11-03 05:32:24,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:24" (1/1) ... [2021-11-03 05:32:24,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:32:24,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:25,117 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-03 05:32:25,124 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-03 05:32:25,146 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:25,151 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:26,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:26,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:26,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:26,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:26,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:26,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:26,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:26,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:26,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:26,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:26,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:27,102 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:27,116 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:32:27,121 INFO L168 Benchmark]: Toolchain (without parser) took 2400.96 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 70.6 MB in the beginning and 81.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:32:27,122 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:32:27,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2398.60 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 70.4 MB in the beginning and 81.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:32:27,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2398.60 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 70.4 MB in the beginning and 81.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 36.0 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/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_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/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_31af9456-7b20-4608-be89-1c1ce4a6edb5/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 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:32:29,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:32:29,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:32:29,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:32:29,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:32:29,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:32:29,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:32:29,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:32:29,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:32:29,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:32:29,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:32:29,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:32:29,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:32:29,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:32:29,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:32:29,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:32:29,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:32:29,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:32:29,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:32:29,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:32:29,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:32:29,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:32:29,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:32:29,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:32:29,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:32:29,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:32:29,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:32:29,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:32:29,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:32:29,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:32:29,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:32:29,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:32:29,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:32:29,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:32:29,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:32:29,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:32:29,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:32:29,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:32:29,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:32:29,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:32:29,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:32:29,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:32:29,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:32:29,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:32:29,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:32:29,555 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:32:29,555 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:32:29,555 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:32:29,556 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:32:29,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:32:29,556 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:32:29,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:32:29,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:32:29,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:32:29,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:32:29,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:32:29,560 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:32:29,560 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:32:29,560 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:32:29,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:32:29,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:32:29,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:32:29,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:32:29,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:32:29,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:32:29,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:29,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:32:29,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:32:29,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:32:29,562 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:32:29,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:32:29,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:32:29,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:32:29,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:32:29,563 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2021-11-03 05:32:29,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:32:29,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:32:29,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:32:29,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:32:29,981 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:32:29,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-03 05:32:30,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/e5447aaec/115387851c664c7a8088f045e60a15e8/FLAGc7e096c7a [2021-11-03 05:32:31,069 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:32:31,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-03 05:32:31,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/e5447aaec/115387851c664c7a8088f045e60a15e8/FLAGc7e096c7a [2021-11-03 05:32:31,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/data/e5447aaec/115387851c664c7a8088f045e60a15e8 [2021-11-03 05:32:31,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:32:31,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:32:31,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:31,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:32:31,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:32:31,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55009d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31, skipping insertion in model container [2021-11-03 05:32:31,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:32:31,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:31,937 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-03 05:32:31,946 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-03 05:32:31,976 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:31,990 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:32,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:32,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:32,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:32,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:32,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:33,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:33,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:33,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:33,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:33,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:33,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:33,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:33,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:33,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:33,712 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:33,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:33,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:34,026 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:32:34,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:34,151 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-03 05:32:34,151 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-03 05:32:34,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:34,156 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:34,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:34,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:34,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:34,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:34,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:34,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:34,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:34,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:34,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:34,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:34,362 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:34,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:34,583 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:32:34,611 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-03 05:32:34,611 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_31af9456-7b20-4608-be89-1c1ce4a6edb5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-03 05:32:34,613 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:34,614 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:34,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:34,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:34,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:34,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:34,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:34,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:34,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:34,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:34,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:34,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:34,761 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:34,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:34,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:35,445 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:32:35,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35 WrapperNode [2021-11-03 05:32:35,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:35,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:32:35,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:32:35,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:32:35,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:32:35,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:32:35,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:32:35,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:32:35,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:32:35,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:32:35,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:32:35,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:32:35,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (1/1) ... [2021-11-03 05:32:35,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:35,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:32:35,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:32:35,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:32:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:32:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:32:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:32:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:32:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:32:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:32:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:32:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:32:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:32:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:32:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:32:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:32:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:32:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:32:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:32:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:32:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:32:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-03 05:32:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-03 05:32:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 05:32:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:32:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:32:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:32:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:32:53,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:32:53,687 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-11-03 05:32:53,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:32:53 BoogieIcfgContainer [2021-11-03 05:32:53,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:32:53,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:32:53,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:32:53,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:32:53,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:32:31" (1/3) ... [2021-11-03 05:32:53,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3550e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:32:53, skipping insertion in model container [2021-11-03 05:32:53,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:35" (2/3) ... [2021-11-03 05:32:53,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3550e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:32:53, skipping insertion in model container [2021-11-03 05:32:53,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:32:53" (3/3) ... [2021-11-03 05:32:53,697 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_string_harness.i [2021-11-03 05:32:53,703 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:32:53,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 05:32:53,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:32:53,791 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:32:53,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 05:32:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 223 states have (on average 1.4887892376681615) internal successors, (332), 238 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 05:32:53,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:53,837 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] [2021-11-03 05:32:53,838 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:32:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -340771444, now seen corresponding path program 1 times [2021-11-03 05:32:53,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:53,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132699885] [2021-11-03 05:32:53,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:53,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:53,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:53,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:32:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:58,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:32:58,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:58,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:58,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:58,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132699885] [2021-11-03 05:32:58,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132699885] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:58,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:58,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:32:58,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850016472] [2021-11-03 05:32:58,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:32:58,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:58,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:32:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:32:58,993 INFO L87 Difference]: Start difference. First operand has 239 states, 223 states have (on average 1.4887892376681615) internal successors, (332), 238 states have internal predecessors, (332), 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 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:59,077 INFO L93 Difference]: Finished difference Result 472 states and 656 transitions. [2021-11-03 05:32:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:32:59,078 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-11-03 05:32:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:59,091 INFO L225 Difference]: With dead ends: 472 [2021-11-03 05:32:59,097 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 05:32:59,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:32:59,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 05:32:59,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-03 05:32:59,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 219 states have (on average 1.3744292237442923) internal successors, (301), 233 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 301 transitions. [2021-11-03 05:32:59,158 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 301 transitions. Word has length 35 [2021-11-03 05:32:59,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:59,159 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 301 transitions. [2021-11-03 05:32:59,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 301 transitions. [2021-11-03 05:32:59,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 05:32:59,161 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:59,162 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] [2021-11-03 05:32:59,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:32:59,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:59,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:32:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1022973578, now seen corresponding path program 1 times [2021-11-03 05:32:59,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:59,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171780391] [2021-11-03 05:32:59,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:59,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:59,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:59,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:33:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:03,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:33:03,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:04,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:04,371 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:04,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171780391] [2021-11-03 05:33:04,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171780391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:04,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:04,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:33:04,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790719795] [2021-11-03 05:33:04,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:04,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:04,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:04,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:04,375 INFO L87 Difference]: Start difference. First operand 234 states and 301 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:04,959 INFO L93 Difference]: Finished difference Result 430 states and 554 transitions. [2021-11-03 05:33:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:04,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2021-11-03 05:33:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:04,966 INFO L225 Difference]: With dead ends: 430 [2021-11-03 05:33:04,966 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 05:33:04,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 05:33:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-03 05:33:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 219 states have (on average 1.365296803652968) internal successors, (299), 233 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 299 transitions. [2021-11-03 05:33:04,988 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 299 transitions. Word has length 35 [2021-11-03 05:33:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:04,989 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 299 transitions. [2021-11-03 05:33:04,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 299 transitions. [2021-11-03 05:33:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:33:04,991 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:04,991 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 05:33:05,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:05,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:05,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:33:05,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash -344459875, now seen corresponding path program 1 times [2021-11-03 05:33:05,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:05,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564332401] [2021-11-03 05:33:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:05,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:05,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:05,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:05,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:33:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:09,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:09,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:09,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:10,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:10,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564332401] [2021-11-03 05:33:10,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564332401] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:10,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:10,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:33:10,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618471886] [2021-11-03 05:33:10,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:10,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:10,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:10,004 INFO L87 Difference]: Start difference. First operand 234 states and 299 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 05:33:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:10,535 INFO L93 Difference]: Finished difference Result 491 states and 636 transitions. [2021-11-03 05:33:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:33:10,536 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 05:33:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:10,539 INFO L225 Difference]: With dead ends: 491 [2021-11-03 05:33:10,539 INFO L226 Difference]: Without dead ends: 294 [2021-11-03 05:33:10,541 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 05:33:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-03 05:33:10,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 246. [2021-11-03 05:33:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 231 states have (on average 1.3463203463203464) internal successors, (311), 245 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2021-11-03 05:33:10,561 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 41 [2021-11-03 05:33:10,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:10,561 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2021-11-03 05:33:10,561 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 05:33:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2021-11-03 05:33:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:33:10,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:10,564 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 05:33:10,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:10,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:10,778 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:33:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash -406499489, now seen corresponding path program 1 times [2021-11-03 05:33:10,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:10,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418886848] [2021-11-03 05:33:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:10,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:10,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:10,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:10,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:33:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:15,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:33:15,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:15,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:33:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:15,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:16,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:33:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:16,551 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:16,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418886848] [2021-11-03 05:33:16,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418886848] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:16,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:16,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-03 05:33:16,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263242729] [2021-11-03 05:33:16,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:33:16,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:33:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:33:16,554 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 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 05:33:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:27,319 INFO L93 Difference]: Finished difference Result 910 states and 1149 transitions. [2021-11-03 05:33:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 05:33:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 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 41 [2021-11-03 05:33:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:27,328 INFO L225 Difference]: With dead ends: 910 [2021-11-03 05:33:27,328 INFO L226 Difference]: Without dead ends: 703 [2021-11-03 05:33:27,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2021-11-03 05:33:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2021-11-03 05:33:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 376. [2021-11-03 05:33:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 361 states have (on average 1.373961218836565) internal successors, (496), 375 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 496 transitions. [2021-11-03 05:33:27,358 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 496 transitions. Word has length 41 [2021-11-03 05:33:27,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:27,359 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 496 transitions. [2021-11-03 05:33:27,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 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 05:33:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 496 transitions. [2021-11-03 05:33:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:33:27,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:27,362 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] [2021-11-03 05:33:27,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:33:27,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:27,577 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:33:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:27,578 INFO L85 PathProgramCache]: Analyzing trace with hash 281757141, now seen corresponding path program 1 times [2021-11-03 05:33:27,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:27,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293764661] [2021-11-03 05:33:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:27,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:27,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:27,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:27,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:33:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:32,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:33:32,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:32,518 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:33:32,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:33:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:32,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:33,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:33,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293764661] [2021-11-03 05:33:33,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293764661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:33,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:33,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:33:33,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826084324] [2021-11-03 05:33:33,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:33:33,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:33,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:33:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:33:33,334 INFO L87 Difference]: Start difference. First operand 376 states and 496 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:50,714 INFO L93 Difference]: Finished difference Result 1131 states and 1481 transitions. [2021-11-03 05:33:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 45 [2021-11-03 05:33:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:50,723 INFO L225 Difference]: With dead ends: 1131 [2021-11-03 05:33:50,723 INFO L226 Difference]: Without dead ends: 787 [2021-11-03 05:33:50,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:33:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-11-03 05:33:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 439. [2021-11-03 05:33:50,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 424 states have (on average 1.3608490566037736) internal successors, (577), 438 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 577 transitions. [2021-11-03 05:33:50,751 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 577 transitions. Word has length 45 [2021-11-03 05:33:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:50,751 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 577 transitions. [2021-11-03 05:33:50,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 577 transitions. [2021-11-03 05:33:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:33:50,753 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:50,754 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] [2021-11-03 05:33:50,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:50,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:50,977 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:33:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:50,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2089982121, now seen corresponding path program 1 times [2021-11-03 05:33:50,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:50,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393302592] [2021-11-03 05:33:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:50,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:50,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:50,982 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:50,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:33:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:55,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:33:55,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:55,713 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:33:55,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:33:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:56,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:57,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:57,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393302592] [2021-11-03 05:33:57,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393302592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:57,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:57,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 05:33:57,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428023934] [2021-11-03 05:33:57,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:33:57,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:57,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:33:57,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:33:57,071 INFO L87 Difference]: Start difference. First operand 439 states and 577 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:32,544 INFO L93 Difference]: Finished difference Result 1527 states and 1951 transitions. [2021-11-03 05:34:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:34:32,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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 45 [2021-11-03 05:34:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:32,554 INFO L225 Difference]: With dead ends: 1527 [2021-11-03 05:34:32,555 INFO L226 Difference]: Without dead ends: 1063 [2021-11-03 05:34:32,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:34:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-11-03 05:34:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 440. [2021-11-03 05:34:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 425 states have (on average 1.3270588235294118) internal successors, (564), 439 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 564 transitions. [2021-11-03 05:34:32,584 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 564 transitions. Word has length 45 [2021-11-03 05:34:32,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:32,584 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 564 transitions. [2021-11-03 05:34:32,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 564 transitions. [2021-11-03 05:34:32,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 05:34:32,585 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:32,586 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] [2021-11-03 05:34:32,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:34:32,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:32,797 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:34:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:32,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1064571566, now seen corresponding path program 1 times [2021-11-03 05:34:32,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:32,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216611405] [2021-11-03 05:34:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:32,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:32,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:32,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:32,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:34:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:37,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:34:37,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:37,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:38,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:38,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216611405] [2021-11-03 05:34:38,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216611405] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:38,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:38,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-03 05:34:38,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590712830] [2021-11-03 05:34:38,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:34:38,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:34:38,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:34:38,387 INFO L87 Difference]: Start difference. First operand 440 states and 564 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:39,463 INFO L93 Difference]: Finished difference Result 527 states and 680 transitions. [2021-11-03 05:34:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:34:39,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 47 [2021-11-03 05:34:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:39,467 INFO L225 Difference]: With dead ends: 527 [2021-11-03 05:34:39,468 INFO L226 Difference]: Without dead ends: 525 [2021-11-03 05:34:39,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:34:39,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-11-03 05:34:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 438. [2021-11-03 05:34:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 424 states have (on average 1.3231132075471699) internal successors, (561), 437 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 561 transitions. [2021-11-03 05:34:39,491 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 561 transitions. Word has length 47 [2021-11-03 05:34:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:39,491 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 561 transitions. [2021-11-03 05:34:39,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 561 transitions. [2021-11-03 05:34:39,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:34:39,493 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:39,493 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] [2021-11-03 05:34:39,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:34:39,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:39,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:34:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash 851202288, now seen corresponding path program 1 times [2021-11-03 05:34:39,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:39,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855943579] [2021-11-03 05:34:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:39,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:39,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:39,722 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:39,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:34:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:44,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 05:34:44,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:48,075 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-03 05:34:48,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 682 treesize of output 234 [2021-11-03 05:34:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:48,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:49,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:49,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855943579] [2021-11-03 05:34:49,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855943579] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:49,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:49,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 12 [2021-11-03 05:34:49,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667343290] [2021-11-03 05:34:49,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:34:49,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:34:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:34:49,405 INFO L87 Difference]: Start difference. First operand 438 states and 561 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:32,662 INFO L93 Difference]: Finished difference Result 1360 states and 1655 transitions. [2021-11-03 05:35:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-03 05:35:32,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 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 49 [2021-11-03 05:35:32,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:32,671 INFO L225 Difference]: With dead ends: 1360 [2021-11-03 05:35:32,671 INFO L226 Difference]: Without dead ends: 1350 [2021-11-03 05:35:32,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=878, Invalid=3154, Unknown=0, NotChecked=0, Total=4032 [2021-11-03 05:35:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2021-11-03 05:35:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 606. [2021-11-03 05:35:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 592 states have (on average 1.3277027027027026) internal successors, (786), 605 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 786 transitions. [2021-11-03 05:35:32,717 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 786 transitions. Word has length 49 [2021-11-03 05:35:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:32,717 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 786 transitions. [2021-11-03 05:35:32,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 786 transitions. [2021-11-03 05:35:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 05:35:32,719 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:32,719 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] [2021-11-03 05:35:32,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:32,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:32,941 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:35:32,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1754060145, now seen corresponding path program 1 times [2021-11-03 05:35:32,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:32,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188457804] [2021-11-03 05:35:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:32,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:32,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:32,947 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:32,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:35:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:37,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:35:37,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:38,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:39,012 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:39,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188457804] [2021-11-03 05:35:39,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188457804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:39,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:39,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:35:39,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226953055] [2021-11-03 05:35:39,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:35:39,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:39,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:35:39,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:35:39,014 INFO L87 Difference]: Start difference. First operand 606 states and 786 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:39,179 INFO L93 Difference]: Finished difference Result 1244 states and 1616 transitions. [2021-11-03 05:35:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:35:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2021-11-03 05:35:39,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:39,189 INFO L225 Difference]: With dead ends: 1244 [2021-11-03 05:35:39,190 INFO L226 Difference]: Without dead ends: 1104 [2021-11-03 05:35:39,191 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:35:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2021-11-03 05:35:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1002. [2021-11-03 05:35:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 988 states have (on average 1.3137651821862348) internal successors, (1298), 1001 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1298 transitions. [2021-11-03 05:35:39,243 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1298 transitions. Word has length 51 [2021-11-03 05:35:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:39,244 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1298 transitions. [2021-11-03 05:35:39,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1298 transitions. [2021-11-03 05:35:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 05:35:39,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:39,245 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] [2021-11-03 05:35:39,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:39,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:39,461 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:35:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1961756626, now seen corresponding path program 1 times [2021-11-03 05:35:39,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:39,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266603877] [2021-11-03 05:35:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:39,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:39,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:39,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:39,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:35:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:44,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 05:35:44,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:47,426 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-03 05:35:47,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 633 treesize of output 217 [2021-11-03 05:35:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:47,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:48,792 INFO L354 Elim1Store]: treesize reduction 1168, result has 0.1 percent of original size [2021-11-03 05:35:48,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 680 treesize of output 1 [2021-11-03 05:35:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:48,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:48,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266603877] [2021-11-03 05:35:48,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266603877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:48,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:48,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-03 05:35:48,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627645686] [2021-11-03 05:35:48,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:35:48,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:35:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:35:48,841 INFO L87 Difference]: Start difference. First operand 1002 states and 1298 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:12,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:12,097 INFO L93 Difference]: Finished difference Result 1399 states and 1783 transitions. [2021-11-03 05:36:12,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:36:12,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-03 05:36:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:12,105 INFO L225 Difference]: With dead ends: 1399 [2021-11-03 05:36:12,105 INFO L226 Difference]: Without dead ends: 1395 [2021-11-03 05:36:12,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:36:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2021-11-03 05:36:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1002. [2021-11-03 05:36:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 988 states have (on average 1.3097165991902835) internal successors, (1294), 1001 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1294 transitions. [2021-11-03 05:36:12,173 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1294 transitions. Word has length 51 [2021-11-03 05:36:12,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:12,173 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1294 transitions. [2021-11-03 05:36:12,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1294 transitions. [2021-11-03 05:36:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 05:36:12,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:12,175 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] [2021-11-03 05:36:12,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:12,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:12,390 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:36:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash -200657010, now seen corresponding path program 1 times [2021-11-03 05:36:12,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:12,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023918295] [2021-11-03 05:36:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:12,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:12,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:12,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:12,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31af9456-7b20-4608-be89-1c1ce4a6edb5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:36:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:17,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:36:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:17,873 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:36:17,874 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 05:36:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:18,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:32,003 WARN L207 SmtUtils]: Spent 13.27 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 05:36:32,009 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 05:36:32,010 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