./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI --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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- 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-5e519f3 [2022-11-03 02:03:31,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:03:31,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:03:31,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:03:31,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:03:31,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:03:31,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:03:31,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:03:31,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:03:31,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:03:31,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:03:31,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:03:31,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:03:31,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:03:31,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:03:31,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:03:31,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:03:31,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:03:31,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:03:31,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:03:31,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:03:31,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:03:31,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:03:31,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:03:31,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:03:31,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:03:31,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:03:31,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:03:31,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:03:31,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:03:31,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:03:31,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:03:31,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:03:31,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:03:31,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:03:31,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:03:31,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:03:31,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:03:31,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:03:31,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:03:31,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:03:31,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:03:31,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:03:31,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:03:31,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:03:31,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:03:31,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:03:31,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:03:31,787 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:03:31,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:03:31,787 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:03:31,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:03:31,788 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:03:31,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:03:31,788 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:03:31,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:03:31,789 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:03:31,789 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:03:31,789 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:03:31,789 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:03:31,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:03:31,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:03:31,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:03:31,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:03:31,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:03:31,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:03:31,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:03:31,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:03:31,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:03:31,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:03:31,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:03:31,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:31,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:03:31,793 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:03:31,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:03:31,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:03:31,794 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:03:31,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:03:31,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:03:31,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:03:31,795 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2022-11-03 02:03:32,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:03:32,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:03:32,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:03:32,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:03:32,108 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:03:32,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-03 02:03:32,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/data/57fd478ef/bd9cc57e4d254ce093e01f9fc9b4fd35/FLAGdc14eeab3 [2022-11-03 02:03:32,939 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:03:32,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-11-03 02:03:32,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/data/57fd478ef/bd9cc57e4d254ce093e01f9fc9b4fd35/FLAGdc14eeab3 [2022-11-03 02:03:33,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/data/57fd478ef/bd9cc57e4d254ce093e01f9fc9b4fd35 [2022-11-03 02:03:33,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:03:33,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:03:33,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:33,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:03:33,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:03:33,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:33" (1/1) ... [2022-11-03 02:03:33,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0f5f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:33, skipping insertion in model container [2022-11-03 02:03:33,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:33" (1/1) ... [2022-11-03 02:03:33,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:03:33,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:03:33,490 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-03 02:03:33,497 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-03 02:03:34,473 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,474 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,474 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,483 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,484 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,497 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,497 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,499 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,500 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:34,941 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:03:34,942 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:03:34,944 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:03:34,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:03:34,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:03:34,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:03:34,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:03:34,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:03:34,960 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:03:34,963 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:03:35,140 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:03:35,279 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,280 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:35,395 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:03:35,408 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-11-03 02:03:35,409 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_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-11-03 02:03:35,448 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,448 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,449 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,449 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,450 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,456 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,457 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,458 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,458 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,489 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:03:35,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:03:35,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:03:35,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:03:35,492 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:03:35,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:03:35,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:03:35,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:03:35,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:03:35,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:03:35,515 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:03:35,591 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,592 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:35,873 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:03:35,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35 WrapperNode [2022-11-03 02:03:35,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:35,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:35,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:03:35,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:03:35,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,114 INFO L138 Inliner]: procedures = 691, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 859 [2022-11-03 02:03:36,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:36,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:03:36,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:03:36,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:03:36,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,229 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:03:36,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:03:36,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:03:36,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:03:36,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (1/1) ... [2022-11-03 02:03:36,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:36,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:36,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:03:36,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:03:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 02:03:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 02:03:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-03 02:03:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-03 02:03:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:03:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:03:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:03:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2022-11-03 02:03:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2022-11-03 02:03:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:03:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-03 02:03:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-03 02:03:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:03:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:03:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:03:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:03:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:03:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-03 02:03:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-03 02:03:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:03:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:03:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:03:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:03:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:03:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:03:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-03 02:03:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-03 02:03:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:03:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:03:36,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:03:36,345 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 02:03:36,345 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 02:03:36,345 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-11-03 02:03:36,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-11-03 02:03:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 02:03:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 02:03:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:03:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:03:36,600 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:03:36,603 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:03:38,190 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:03:38,646 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:03:38,647 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:03:38,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:38 BoogieIcfgContainer [2022-11-03 02:03:38,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:03:38,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:03:38,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:03:38,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:03:38,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:03:33" (1/3) ... [2022-11-03 02:03:38,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf2332e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:38, skipping insertion in model container [2022-11-03 02:03:38,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:35" (2/3) ... [2022-11-03 02:03:38,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf2332e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:38, skipping insertion in model container [2022-11-03 02:03:38,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:38" (3/3) ... [2022-11-03 02:03:38,666 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2022-11-03 02:03:38,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:03:38,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:03:38,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:03:38,776 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;@758bbb69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:03:38,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:03:38,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-03 02:03:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:03:38,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:38,792 INFO L195 NwaCegarLoop]: trace histogram [7, 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] [2022-11-03 02:03:38,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash -963794593, now seen corresponding path program 1 times [2022-11-03 02:03:38,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:38,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354134678] [2022-11-03 02:03:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:38,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-03 02:03:47,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:47,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354134678] [2022-11-03 02:03:47,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354134678] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:47,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734549559] [2022-11-03 02:03:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:47,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:47,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:47,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:47,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d92fba6e-5ca6-4759-9a8b-ab43de640a0a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:03:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:48,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2607 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-03 02:03:48,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:48,460 INFO L390 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 [2022-11-03 02:03:48,469 INFO L390 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 [2022-11-03 02:03:50,989 INFO L390 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 17 treesize of output 9 [2022-11-03 02:03:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:03:51,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:03:52,735 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-03 02:04:06,222 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.