./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba --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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- 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-b5237d8 [2022-11-22 01:13:24,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:13:24,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:13:24,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:13:24,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:13:24,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:13:24,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:13:24,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:13:24,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:13:24,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:13:24,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:13:24,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:13:24,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:13:24,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:13:24,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:13:24,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:13:24,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:13:24,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:13:24,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:13:24,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:13:24,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:13:24,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:13:24,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:13:24,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:13:24,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:13:24,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:13:24,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:13:24,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:13:24,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:13:24,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:13:24,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:13:24,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:13:24,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:13:24,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:13:24,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:13:24,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:13:24,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:13:24,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:13:24,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:13:24,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:13:24,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:13:24,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:13:24,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:13:24,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:13:24,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:13:24,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:13:24,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:13:24,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:13:24,614 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:13:24,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:13:24,614 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:13:24,615 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:13:24,615 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:13:24,615 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:13:24,615 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:13:24,615 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:13:24,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:13:24,616 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:13:24,616 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:13:24,616 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:13:24,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:13:24,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:13:24,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:13:24,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:13:24,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:13:24,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:13:24,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:13:24,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:13:24,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:13:24,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:13:24,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:13:24,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:13:24,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:13:24,620 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:13:24,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:13:24,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:13:24,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:13:24,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:13:24,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:13:24,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:13:24,621 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_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2022-11-22 01:13:24,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:13:24,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:13:24,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:13:24,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:13:24,958 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:13:24,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-22 01:13:27,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:13:28,562 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:13:28,566 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-22 01:13:28,604 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/data/6e0e4fd2f/d893836827e3406f832c6c09c450b2e4/FLAG19f9b780b [2022-11-22 01:13:28,631 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/data/6e0e4fd2f/d893836827e3406f832c6c09c450b2e4 [2022-11-22 01:13:28,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:13:28,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:13:28,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:13:28,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:13:28,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:13:28,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:28,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bf301c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:28, skipping insertion in model container [2022-11-22 01:13:28,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:28" (1/1) ... [2022-11-22 01:13:28,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:13:28,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:13:29,075 WARN L237 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_a57edf04-23fd-43dd-bd60-9e0b6a741975/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-22 01:13:29,086 WARN L237 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_a57edf04-23fd-43dd-bd60-9e0b6a741975/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-22 01:13:30,326 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,330 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,331 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,332 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,334 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,358 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,359 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,361 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,361 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:30,884 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:13:30,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:13:30,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:13:30,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:13:30,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:13:30,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:13:30,891 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:13:30,892 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:13:30,893 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:13:30,893 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:13:31,178 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:13:31,379 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,386 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:13:31,493 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:13:31,506 WARN L237 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_a57edf04-23fd-43dd-bd60-9e0b6a741975/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-22 01:13:31,507 WARN L237 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_a57edf04-23fd-43dd-bd60-9e0b6a741975/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-22 01:13:31,536 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,543 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,544 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,545 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,545 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,551 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,553 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:13:31,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:13:31,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:13:31,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:13:31,600 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:13:31,601 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:13:31,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:13:31,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:13:31,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:13:31,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:13:31,621 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:13:31,669 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,670 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:13:31,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:13:32,018 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:13:32,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32 WrapperNode [2022-11-22 01:13:32,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:13:32,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:13:32,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:13:32,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:13:32,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,244 INFO L138 Inliner]: procedures = 690, calls = 2636, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 870 [2022-11-22 01:13:32,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:13:32,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:13:32,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:13:32,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:13:32,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,341 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:13:32,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:13:32,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:13:32,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:13:32,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (1/1) ... [2022-11-22 01:13:32,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:13:32,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:13:32,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:13:32,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:13:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-22 01:13:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-22 01:13:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:13:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:13:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:13:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-22 01:13:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:13:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:13:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:13:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:13:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:13:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:13:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:13:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:13:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:13:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:13:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:13:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:13:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:13:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:13:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:13:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:13:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:13:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:13:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:13:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:13:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:13:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:13:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-22 01:13:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-22 01:13:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:13:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:13:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:13:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 01:13:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 01:13:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:13:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-22 01:13:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:13:32,863 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:13:32,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:13:34,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:13:34,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:13:34,676 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:13:34,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:13:34 BoogieIcfgContainer [2022-11-22 01:13:34,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:13:34,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:13:34,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:13:34,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:13:34,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:13:28" (1/3) ... [2022-11-22 01:13:34,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282358e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:13:34, skipping insertion in model container [2022-11-22 01:13:34,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:32" (2/3) ... [2022-11-22 01:13:34,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282358e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:13:34, skipping insertion in model container [2022-11-22 01:13:34,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:13:34" (3/3) ... [2022-11-22 01:13:34,691 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2022-11-22 01:13:34,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:13:34,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:13:34,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:13:34,798 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;@43625d43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:13:34,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:13:34,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-22 01:13:34,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 01:13:34,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:34,813 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 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] [2022-11-22 01:13:34,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:34,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1678221370, now seen corresponding path program 1 times [2022-11-22 01:13:34,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:34,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580451277] [2022-11-22 01:13:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:34,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:13:50,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:50,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580451277] [2022-11-22 01:13:50,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580451277] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:13:50,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881019785] [2022-11-22 01:13:50,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:50,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:13:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:13:50,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:13:50,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57edf04-23fd-43dd-bd60-9e0b6a741975/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:13:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:51,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-22 01:13:51,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:13:51,809 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 [2022-11-22 01:14:00,962 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:14:00,963 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 81 treesize of output 65 [2022-11-22 01:14:01,029 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:14:01,030 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 [2022-11-22 01:14:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:14:01,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:14:03,907 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-22 01:21:56,402 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.