./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:46:24,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:46:24,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:46:24,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:46:24,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:46:24,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:46:24,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:46:24,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:46:24,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:46:24,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:46:24,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:46:24,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:46:24,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:46:24,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:46:24,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:46:24,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:46:24,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:46:24,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:46:24,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:46:24,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:46:24,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:46:24,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:46:24,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:46:24,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:46:24,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:46:24,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:46:24,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:46:24,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:46:24,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:46:24,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:46:24,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:46:24,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:46:24,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:46:24,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:46:24,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:46:24,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:46:24,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:46:24,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:46:24,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:46:24,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:46:24,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:46:24,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:46:24,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:46:24,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:46:24,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:46:24,881 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:46:24,881 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:46:24,881 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:46:24,881 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:46:24,882 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:46:24,882 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:46:24,882 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:46:24,882 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:46:24,882 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:46:24,883 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:46:24,883 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:46:24,883 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:46:24,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:46:24,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:46:24,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:46:24,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:46:24,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:46:24,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:46:24,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:46:24,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:46:24,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:46:24,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:46:24,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:46:24,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:46:24,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:46:24,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:46:24,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:46:24,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:46:24,888 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:46:24,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:46:24,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:46:24,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:46:24,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:46:24,889 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2021-11-03 04:46:25,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:46:25,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:46:25,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:46:25,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:46:25,163 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:46:25,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-03 04:46:25,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/a6ac48edc/59bf344c50734d73a9dfd147fa05a901/FLAG7db5bd12a [2021-11-03 04:46:26,055 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:46:26,056 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-03 04:46:26,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/a6ac48edc/59bf344c50734d73a9dfd147fa05a901/FLAG7db5bd12a [2021-11-03 04:46:26,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/a6ac48edc/59bf344c50734d73a9dfd147fa05a901 [2021-11-03 04:46:26,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:46:26,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:46:26,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:46:26,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:46:26,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:46:26,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:26" (1/1) ... [2021-11-03 04:46:26,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffd320a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:26, skipping insertion in model container [2021-11-03 04:46:26,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:26" (1/1) ... [2021-11-03 04:46:26,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:46:26,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:46:26,969 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-03 04:46:26,977 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-03 04:46:27,000 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:46:27,005 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:46:27,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:27,943 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:28,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:46:28,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:46:28,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:46:28,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:46:28,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:46:28,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:46:28,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:46:28,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:46:28,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:46:28,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:46:28,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:46:28,712 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:46:28,723 INFO L168 Benchmark]: Toolchain (without parser) took 2161.51 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 67.2 MB in the beginning and 79.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:46:28,724 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:46:28,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2159.05 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 66.9 MB in the beginning and 79.7 MB in the end (delta: -12.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:46:28,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2159.05 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 66.9 MB in the beginning and 79.7 MB in the end (delta: -12.8 MB). Peak memory consumption was 32.0 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:46:30,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:46:30,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:46:30,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:46:30,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:46:30,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:46:30,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:46:30,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:46:30,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:46:30,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:46:30,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:46:30,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:46:30,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:46:30,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:46:30,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:46:30,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:46:30,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:46:30,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:46:30,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:46:30,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:46:30,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:46:30,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:46:31,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:46:31,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:46:31,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:46:31,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:46:31,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:46:31,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:46:31,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:46:31,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:46:31,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:46:31,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:46:31,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:46:31,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:46:31,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:46:31,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:46:31,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:46:31,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:46:31,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:46:31,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:46:31,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:46:31,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:46:31,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:46:31,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:46:31,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:46:31,075 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:46:31,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:46:31,075 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:46:31,075 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:46:31,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:46:31,076 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:46:31,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:46:31,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:46:31,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:46:31,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:46:31,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:46:31,079 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:46:31,080 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:46:31,080 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:46:31,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:46:31,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:46:31,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:46:31,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:46:31,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:46:31,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:46:31,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:46:31,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:46:31,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:46:31,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:46:31,083 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:46:31,083 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:46:31,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:46:31,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:46:31,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:46:31,084 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2021-11-03 04:46:31,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:46:31,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:46:31,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:46:31,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:46:31,522 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:46:31,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-03 04:46:31,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/ba066bb7a/e2eab6b2eca54a47af3aafda3cee82d8/FLAGb6c21a900 [2021-11-03 04:46:32,471 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:46:32,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-03 04:46:32,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/ba066bb7a/e2eab6b2eca54a47af3aafda3cee82d8/FLAGb6c21a900 [2021-11-03 04:46:32,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/data/ba066bb7a/e2eab6b2eca54a47af3aafda3cee82d8 [2021-11-03 04:46:32,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:46:32,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:46:32,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:46:32,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:46:32,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:46:32,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:32" (1/1) ... [2021-11-03 04:46:32,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69cee200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:32, skipping insertion in model container [2021-11-03 04:46:32,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:32" (1/1) ... [2021-11-03 04:46:32,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:46:33,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:46:33,493 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-03 04:46:33,502 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-03 04:46:33,530 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:46:33,538 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:46:34,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,713 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:34,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,224 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:46:35,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:46:35,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:46:35,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:46:35,229 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:46:35,230 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:46:35,230 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:46:35,231 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:46:35,232 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:46:35,232 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:46:35,394 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:46:35,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:46:35,693 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:46:35,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:46:35,757 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-03 04:46:35,758 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-03 04:46:35,759 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:46:35,760 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:46:35,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:35,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:46:35,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:46:35,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:46:35,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:46:35,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:46:35,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:46:35,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:46:35,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:46:35,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:46:35,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:46:35,962 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:46:36,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:46:36,141 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:46:36,160 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-03 04:46:36,162 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_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-03 04:46:36,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:46:36,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:46:36,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:46:36,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:46:36,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:46:36,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:46:36,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:46:36,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:46:36,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:46:36,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:46:36,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:46:36,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:46:36,302 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:46:36,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:46:36,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:46:36,983 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:46:36,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36 WrapperNode [2021-11-03 04:46:36,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:46:36,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:46:36,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:46:36,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:46:36,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:46:37,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:46:37,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:46:37,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:46:37,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:46:37,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:46:37,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:46:37,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:46:37,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (1/1) ... [2021-11-03 04:46:37,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:46:37,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:46:37,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:46:37,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:46:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:46:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:46:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:46:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:46:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:46:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:46:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:46:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:46:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:46:50,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:46:50,903 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-03 04:46:50,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:46:50 BoogieIcfgContainer [2021-11-03 04:46:50,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:46:50,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:46:50,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:46:50,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:46:50,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:46:32" (1/3) ... [2021-11-03 04:46:50,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e127cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:46:50, skipping insertion in model container [2021-11-03 04:46:50,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:36" (2/3) ... [2021-11-03 04:46:50,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e127cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:46:50, skipping insertion in model container [2021-11-03 04:46:50,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:46:50" (3/3) ... [2021-11-03 04:46:50,912 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_c_str_harness.i [2021-11-03 04:46:50,918 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:46:50,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 04:46:50,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:46:50,976 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:46:50,979 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 04:46:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 131 states have (on average 1.4732824427480915) internal successors, (193), 138 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 04:46:51,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:51,004 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] [2021-11-03 04:46:51,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:46:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1563218279, now seen corresponding path program 1 times [2021-11-03 04:46:51,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:51,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149611173] [2021-11-03 04:46:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:51,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:51,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:51,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:51,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:46:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:55,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:46:55,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:46:55,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:46:55,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:55,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149611173] [2021-11-03 04:46:55,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149611173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:55,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:55,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:46:55,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176104456] [2021-11-03 04:46:55,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:46:55,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:46:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:46:55,911 INFO L87 Difference]: Start difference. First operand has 139 states, 131 states have (on average 1.4732824427480915) internal successors, (193), 138 states have internal predecessors, (193), 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:55,964 INFO L93 Difference]: Finished difference Result 274 states and 381 transitions. [2021-11-03 04:46:55,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:46:55,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2021-11-03 04:46:55,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:55,980 INFO L225 Difference]: With dead ends: 274 [2021-11-03 04:46:55,980 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:46:55,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:46:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:46:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-03 04:46:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 132 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 164 transitions. [2021-11-03 04:46:56,043 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 164 transitions. Word has length 48 [2021-11-03 04:46:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:56,043 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 164 transitions. [2021-11-03 04:46:56,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 164 transitions. [2021-11-03 04:46:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 04:46:56,047 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:56,047 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] [2021-11-03 04:46:56,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:46:56,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:56,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:46:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash -499919455, now seen corresponding path program 1 times [2021-11-03 04:46:56,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:56,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801933880] [2021-11-03 04:46:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:56,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:56,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:56,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:56,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:47:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:00,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:47:00,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:47:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:47:00,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:47:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:47:01,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:47:01,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801933880] [2021-11-03 04:47:01,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801933880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:47:01,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:47:01,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:47:01,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529136838] [2021-11-03 04:47:01,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:47:01,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:47:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:47:01,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:47:01,056 INFO L87 Difference]: Start difference. First operand 133 states and 164 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:01,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:47:01,347 INFO L93 Difference]: Finished difference Result 236 states and 292 transitions. [2021-11-03 04:47:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:47:01,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-11-03 04:47:01,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:47:01,350 INFO L225 Difference]: With dead ends: 236 [2021-11-03 04:47:01,350 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:47:01,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:47:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:47:01,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-03 04:47:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 126 states have (on average 1.2777777777777777) internal successors, (161), 132 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2021-11-03 04:47:01,369 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 48 [2021-11-03 04:47:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:47:01,369 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2021-11-03 04:47:01,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2021-11-03 04:47:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 04:47:01,374 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:47:01,374 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 04:47:01,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:47:01,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:47:01,589 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:47:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:47:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 985948129, now seen corresponding path program 1 times [2021-11-03 04:47:01,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:47:01,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963991286] [2021-11-03 04:47:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:47:01,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:47:01,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:47:01,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:47:01,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:47:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:05,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:47:05,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:47:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:47:06,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:47:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:47:06,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:47:06,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963991286] [2021-11-03 04:47:06,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963991286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:47:06,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:47:06,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:47:06,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251727906] [2021-11-03 04:47:06,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:47:06,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:47:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:47:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:47:06,764 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:47:07,078 INFO L93 Difference]: Finished difference Result 186 states and 222 transitions. [2021-11-03 04:47:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:47:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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 52 [2021-11-03 04:47:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:47:07,081 INFO L225 Difference]: With dead ends: 186 [2021-11-03 04:47:07,081 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:47:07,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:47:07,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:47:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-03 04:47:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 132 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 160 transitions. [2021-11-03 04:47:07,090 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 160 transitions. Word has length 52 [2021-11-03 04:47:07,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:47:07,091 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 160 transitions. [2021-11-03 04:47:07,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:47:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 160 transitions. [2021-11-03 04:47:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:47:07,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:47:07,093 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:47:07,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:47:07,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:47:07,297 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:47:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:47:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash 912109596, now seen corresponding path program 1 times [2021-11-03 04:47:07,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:47:07,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188057829] [2021-11-03 04:47:07,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:47:07,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:47:07,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:47:07,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:47:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:47:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:11,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 04:47:11,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:47:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:47:12,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:47:23,455 WARN L207 SmtUtils]: Spent 8.96 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:47:23,463 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:47:23,465 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 128 treesize of output 771 [2021-11-03 04:56:28,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:28,730 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:28,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188057829] [2021-11-03 04:56:28,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188057829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:28,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:28,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 19 [2021-11-03 04:56:28,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22608298] [2021-11-03 04:56:28,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 04:56:28,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:28,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 04:56:28,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:56:28,733 INFO L87 Difference]: Start difference. First operand 133 states and 160 transitions. Second operand has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 19 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:49,316 INFO L93 Difference]: Finished difference Result 457 states and 546 transitions. [2021-11-03 04:56:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-03 04:56:49,319 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 19 states have internal predecessors, (104), 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 54 [2021-11-03 04:56:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:49,322 INFO L225 Difference]: With dead ends: 457 [2021-11-03 04:56:49,322 INFO L226 Difference]: Without dead ends: 372 [2021-11-03 04:56:49,325 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=788, Invalid=3118, Unknown=0, NotChecked=0, Total=3906 [2021-11-03 04:56:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-03 04:56:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 223. [2021-11-03 04:56:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 216 states have (on average 1.25) internal successors, (270), 222 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 270 transitions. [2021-11-03 04:56:49,361 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 270 transitions. Word has length 54 [2021-11-03 04:56:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:49,362 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 270 transitions. [2021-11-03 04:56:49,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 19 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 270 transitions. [2021-11-03 04:56:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:56:49,364 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:49,364 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:49,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:49,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:49,585 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:56:49,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2033036321, now seen corresponding path program 1 times [2021-11-03 04:56:49,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:49,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293473639] [2021-11-03 04:56:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:49,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:49,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:49,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26a1d535-ef8d-4b66-9cf4-a84abb04a76e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process