./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS --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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:35:05,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:35:05,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:35:05,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:35:05,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:35:05,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:35:05,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:35:05,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:35:05,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:35:05,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:35:05,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:35:05,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:35:05,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:35:05,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:35:05,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:35:05,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:35:05,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:35:05,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:35:05,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:35:05,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:35:05,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:35:05,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:35:05,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:35:05,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:35:05,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:35:05,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:35:05,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:35:05,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:35:05,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:35:05,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:35:05,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:35:05,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:35:05,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:35:05,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:35:05,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:35:05,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:35:05,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:35:05,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:35:05,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:35:05,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:35:05,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:35:05,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:35:05,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:35:05,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:35:05,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:35:05,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:35:05,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:35:05,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:35:05,519 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:35:05,519 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:35:05,519 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:35:05,519 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:35:05,520 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:35:05,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:35:05,521 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:35:05,521 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:35:05,521 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:35:05,522 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:35:05,522 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:35:05,522 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:35:05,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:35:05,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:35:05,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:35:05,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:35:05,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:35:05,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:35:05,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:35:05,524 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:35:05,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:35:05,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:35:05,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:35:05,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:35:05,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:35:05,526 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:35:05,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:35:05,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:35:05,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:35:05,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:35:05,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:35:05,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:35:05,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2022-11-19 07:35:05,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:35:05,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:35:05,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:35:05,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:35:05,888 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:35:05,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-19 07:35:05,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/data/c89f221fb/d390c641004b47169b63cd74d4c5ce28/FLAGdad25943c [2022-11-19 07:35:06,886 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:35:06,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2022-11-19 07:35:06,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/data/c89f221fb/d390c641004b47169b63cd74d4c5ce28/FLAGdad25943c [2022-11-19 07:35:07,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/data/c89f221fb/d390c641004b47169b63cd74d4c5ce28 [2022-11-19 07:35:07,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:35:07,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:35:07,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:35:07,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:35:07,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:35:07,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:07" (1/1) ... [2022-11-19 07:35:07,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310a5701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:07, skipping insertion in model container [2022-11-19 07:35:07,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:07" (1/1) ... [2022-11-19 07:35:07,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:35:07,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:35:07,820 WARN L234 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_314a944c-4186-4d7b-9bbc-5c3af1191c12/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-19 07:35:07,828 WARN L234 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_314a944c-4186-4d7b-9bbc-5c3af1191c12/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-19 07:35:08,916 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,922 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,923 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,925 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,927 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,943 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,944 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,946 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:08,946 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,392 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:35:09,394 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:35:09,395 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:35:09,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:35:09,398 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:35:09,398 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:35:09,399 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:35:09,400 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:35:09,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:35:09,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:35:09,585 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:35:09,673 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,674 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:35:09,805 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:35:09,834 WARN L234 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_314a944c-4186-4d7b-9bbc-5c3af1191c12/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2022-11-19 07:35:09,835 WARN L234 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_314a944c-4186-4d7b-9bbc-5c3af1191c12/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2022-11-19 07:35:09,925 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,926 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,926 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,927 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,927 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,934 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,935 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,936 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,937 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:09,970 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:35:09,971 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:35:09,973 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:35:09,974 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:35:09,975 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:35:09,975 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:35:09,976 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:35:09,977 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:35:09,977 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:35:09,978 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:35:10,018 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:35:10,117 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:10,118 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:35:10,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:35:10,375 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:35:10,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10 WrapperNode [2022-11-19 07:35:10,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:35:10,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:35:10,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:35:10,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:35:10,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,591 INFO L138 Inliner]: procedures = 691, calls = 2638, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 899 [2022-11-19 07:35:10,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:35:10,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:35:10,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:35:10,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:35:10,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:35:10,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:35:10,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:35:10,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:35:10,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (1/1) ... [2022-11-19 07:35:10,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:35:10,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:10,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:35:10,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:35:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2022-11-19 07:35:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2022-11-19 07:35:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-19 07:35:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-19 07:35:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:35:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 07:35:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 07:35:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:35:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:35:10,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:35:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:35:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:35:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-19 07:35:10,811 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-19 07:35:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:35:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:35:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:35:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 07:35:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 07:35:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-19 07:35:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-19 07:35:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:35:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:35:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:35:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:35:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:35:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 07:35:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 07:35:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-19 07:35:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-19 07:35:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:35:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:35:11,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:35:11,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:35:12,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:35:12,930 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:35:12,931 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:35:12,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:12 BoogieIcfgContainer [2022-11-19 07:35:12,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:35:12,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:35:12,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:35:12,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:35:12,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:07" (1/3) ... [2022-11-19 07:35:12,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4a1285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:12, skipping insertion in model container [2022-11-19 07:35:12,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:10" (2/3) ... [2022-11-19 07:35:12,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4a1285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:12, skipping insertion in model container [2022-11-19 07:35:12,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:12" (3/3) ... [2022-11-19 07:35:12,948 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2022-11-19 07:35:12,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:35:12,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:35:13,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:35:13,044 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f06e92c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:35:13,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:35:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-19 07:35:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 07:35:13,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:13,063 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:13,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:35:13,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:13,070 INFO L85 PathProgramCache]: Analyzing trace with hash 635743890, now seen corresponding path program 1 times [2022-11-19 07:35:13,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:13,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021538848] [2022-11-19 07:35:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:13,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-19 07:35:29,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:29,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021538848] [2022-11-19 07:35:29,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021538848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:35:29,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355417223] [2022-11-19 07:35:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:29,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:35:29,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:29,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:35:29,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314a944c-4186-4d7b-9bbc-5c3af1191c12/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:35:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:30,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2702 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-19 07:35:30,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:31,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-19 07:35:31,441 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:35:41,664 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:35:41,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 98 treesize of output 74 [2022-11-19 07:35:41,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:35:41,720 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 17 [2022-11-19 07:35:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 07:35:41,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:44,484 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-19 07:43:38,759 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.