./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P --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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:38:38,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:38:38,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:38:38,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:38:38,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:38:38,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:38:38,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:38:38,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:38:38,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:38:38,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:38:38,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:38:38,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:38:38,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:38:38,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:38:38,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:38:38,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:38:38,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:38:38,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:38:38,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:38:38,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:38:38,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:38:38,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:38:38,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:38:38,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:38:38,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:38:38,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:38:38,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:38:38,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:38:38,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:38:38,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:38:38,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:38:38,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:38:38,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:38:38,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:38:38,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:38:38,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:38:38,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:38:38,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:38:38,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:38:38,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:38:38,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:38:38,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:38:38,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:38:38,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:38:38,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:38:38,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:38:38,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:38:38,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:38:38,974 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:38:38,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:38:38,975 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:38:38,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:38:38,977 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:38:38,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:38:38,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:38:38,978 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:38:38,978 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:38:38,978 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:38:38,979 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:38:38,979 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:38:38,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:38:38,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:38:38,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:38:38,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:38:38,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:38:38,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:38:38,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:38:38,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:38:38,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:38:38,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:38:38,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:38:38,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:38:38,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:38:38,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:38:38,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:38:38,985 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:38:38,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:38:38,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:38:38,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:38:38,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:38:38,986 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_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2021-11-21 00:38:39,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:38:39,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:38:39,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:38:39,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:38:39,342 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:38:39,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-21 00:38:39,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/data/32ebf05df/a11e718523e6456c825c24700d9969e7/FLAG5effa1c44 [2021-11-21 00:38:40,486 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:38:40,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-21 00:38:40,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/data/32ebf05df/a11e718523e6456c825c24700d9969e7/FLAG5effa1c44 [2021-11-21 00:38:40,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/data/32ebf05df/a11e718523e6456c825c24700d9969e7 [2021-11-21 00:38:40,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:38:40,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:38:40,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:38:40,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:38:40,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:38:40,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:38:40" (1/1) ... [2021-11-21 00:38:40,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d28e8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:40, skipping insertion in model container [2021-11-21 00:38:40,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:38:40" (1/1) ... [2021-11-21 00:38:40,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:38:41,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:38:41,507 WARN L230 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_88e92473-5a24-40eb-bcba-2e69d8563e55/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-21 00:38:41,520 WARN L230 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_88e92473-5a24-40eb-bcba-2e69d8563e55/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-21 00:38:42,801 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,802 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,803 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,804 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,823 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,824 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,827 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:42,828 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:43,389 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:38:43,391 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:38:43,393 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:38:43,395 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:38:43,397 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:38:43,398 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:38:43,399 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:38:43,400 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:38:43,401 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:38:43,402 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:38:43,626 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:38:43,658 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:43,659 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:43,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:43,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:43,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:38:43,988 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:38:44,014 WARN L230 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_88e92473-5a24-40eb-bcba-2e69d8563e55/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-21 00:38:44,015 WARN L230 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_88e92473-5a24-40eb-bcba-2e69d8563e55/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-21 00:38:44,078 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,089 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,089 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,090 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,093 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,102 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,112 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,113 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,114 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,182 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:38:44,183 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:38:44,184 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:38:44,188 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:38:44,191 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:38:44,192 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:38:44,193 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:38:44,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:38:44,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:38:44,201 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:38:44,241 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:38:44,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,265 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,417 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,417 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:38:44,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:38:44,865 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:38:44,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44 WrapperNode [2021-11-21 00:38:44,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:38:44,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:38:44,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:38:44,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:38:44,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,229 INFO L137 Inliner]: procedures = 691, calls = 2646, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 959 [2021-11-21 00:38:45,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:38:45,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:38:45,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:38:45,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:38:45,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:38:45,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:38:45,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:38:45,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:38:45,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (1/1) ... [2021-11-21 00:38:45,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:38:45,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:38:45,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:38:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:38:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-21 00:38:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-21 00:38:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-21 00:38:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-21 00:38:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:38:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 00:38:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 00:38:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:38:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-21 00:38:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-21 00:38:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:38:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:38:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:38:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:38:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:38:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:38:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:38:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 00:38:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 00:38:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 00:38:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 00:38:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:38:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-21 00:38:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-21 00:38:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:38:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:38:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 00:38:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 00:38:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-21 00:38:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-21 00:38:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2021-11-21 00:38:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2021-11-21 00:38:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-21 00:38:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-21 00:38:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:38:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:38:46,049 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:38:46,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:38:47,942 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:38:48,355 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:38:48,355 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:38:48,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:38:48 BoogieIcfgContainer [2021-11-21 00:38:48,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:38:48,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:38:48,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:38:48,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:38:48,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:38:40" (1/3) ... [2021-11-21 00:38:48,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f161c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:38:48, skipping insertion in model container [2021-11-21 00:38:48,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:44" (2/3) ... [2021-11-21 00:38:48,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f161c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:38:48, skipping insertion in model container [2021-11-21 00:38:48,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:38:48" (3/3) ... [2021-11-21 00:38:48,372 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2021-11-21 00:38:48,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:38:48,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:38:48,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:38:48,479 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 [2021-11-21 00:38:48,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:38:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-11-21 00:38:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-21 00:38:48,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:38:48,526 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:38:48,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:38:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:38:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2063670608, now seen corresponding path program 1 times [2021-11-21 00:38:48,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:38:48,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529907276] [2021-11-21 00:38:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:38:48,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:38:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:38:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-21 00:38:52,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:38:52,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529907276] [2021-11-21 00:38:52,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529907276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:38:52,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297185559] [2021-11-21 00:38:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:38:52,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:38:52,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:38:52,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:38:52,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e92473-5a24-40eb-bcba-2e69d8563e55/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:38:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:38:53,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-21 00:38:53,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:38:53,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:38:53,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:38:53,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:38:55,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:38:55,836 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:38:55,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 26 [2021-11-21 00:38:55,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:38:55,848 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:38:55,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 10 [2021-11-21 00:38:57,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-21 00:38:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-21 00:38:57,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:38:59,214 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2021-11-21 00:39:24,252 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.