./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 cf1a7837 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_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/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_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:30,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:30,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:00:30,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:30,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:30,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:30,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:30,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:30,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:30,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:30,496 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:30,497 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:30,499 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:30,502 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:00:30,503 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:30,503 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:30,504 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:00:30,508 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:00:30,509 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:30,510 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:00:30,510 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:00:30,511 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:00:30,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:30,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:00:30,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:30,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:30,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:00:30,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:30,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:00:30,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:00:30,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:30,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:30,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:30,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:30,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:30,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:30,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:00:30,519 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:00:30,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:00:30,519 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:00:30,520 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:30,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:30,520 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2023-11-12 01:00:30,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:30,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:30,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:30,812 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:30,812 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:30,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-12 01:00:33,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:34,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:34,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-12 01:00:34,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/data/10612021d/6ac0e8942bc94f9a9e862d6d392057b6/FLAG6814882fb [2023-11-12 01:00:34,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/data/10612021d/6ac0e8942bc94f9a9e862d6d392057b6 [2023-11-12 01:00:34,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:34,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:34,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:34,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:34,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:34,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:34" (1/1) ... [2023-11-12 01:00:34,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3824045e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:34, skipping insertion in model container [2023-11-12 01:00:34,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:34" (1/1) ... [2023-11-12 01:00:34,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:35,273 WARN L240 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_d703e482-04e9-4b3e-a76a-272fcb9fd745/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-12 01:00:35,281 WARN L240 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_d703e482-04e9-4b3e-a76a-272fcb9fd745/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-12 01:00:36,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,497 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,497 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,500 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,515 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,516 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,518 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,519 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:36,975 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:00:36,977 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:00:36,978 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:00:36,980 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:00:36,981 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:00:36,982 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:00:36,983 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:00:36,984 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:00:36,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:00:36,986 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:00:37,356 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,362 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:37,565 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:00:37,592 WARN L240 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_d703e482-04e9-4b3e-a76a-272fcb9fd745/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-12 01:00:37,592 WARN L240 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_d703e482-04e9-4b3e-a76a-272fcb9fd745/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-12 01:00:37,680 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,681 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,681 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,682 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,683 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,713 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,714 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,715 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,716 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,774 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:00:37,776 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:00:37,776 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:00:37,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:00:37,779 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:00:37,780 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:00:37,783 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:00:37,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:00:37,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:00:37,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:00:37,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-12 01:00:37,904 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,906 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:00:37,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-12 01:00:37,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:38,285 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,286 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,286 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,286 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,286 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,287 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,287 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,287 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,288 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,288 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,288 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,289 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,289 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,289 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,290 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,290 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,291 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,291 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,299 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:00:38,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38 WrapperNode [2023-11-12 01:00:38,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:38,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:38,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:00:38,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:00:38,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,545 INFO L138 Inliner]: procedures = 689, calls = 2640, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 874 [2023-11-12 01:00:38,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:38,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:00:38,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:00:38,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:00:38,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:00:38,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:00:38,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:00:38,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:00:38,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:38,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:00:38,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:00:38,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:00:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 01:00:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 01:00:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:00:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 01:00:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 01:00:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-12 01:00:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 01:00:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 01:00:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:00:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 01:00:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 01:00:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:00:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:00:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:00:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:00:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 01:00:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 01:00:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 01:00:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 01:00:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:00:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-12 01:00:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 01:00:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 01:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 01:00:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 01:00:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:00:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-12 01:00:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:00:39,132 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:00:39,135 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:00:40,943 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:00:41,246 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:00:41,246 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:00:41,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:41 BoogieIcfgContainer [2023-11-12 01:00:41,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:00:41,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:00:41,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:00:41,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:00:41,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:00:34" (1/3) ... [2023-11-12 01:00:41,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c959c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:41, skipping insertion in model container [2023-11-12 01:00:41,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (2/3) ... [2023-11-12 01:00:41,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c959c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:41, skipping insertion in model container [2023-11-12 01:00:41,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:41" (3/3) ... [2023-11-12 01:00:41,260 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2023-11-12 01:00:41,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:00:41,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:00:41,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:00:41,357 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=LoopHeads, 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;@67bbd8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:00:41,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:00:41,363 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) [2023-11-12 01:00:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 01:00:41,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:41,374 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] [2023-11-12 01:00:41,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:00:41,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:41,380 INFO L85 PathProgramCache]: Analyzing trace with hash -493764901, now seen corresponding path program 1 times [2023-11-12 01:00:41,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:41,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078131164] [2023-11-12 01:00:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:41,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:00:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 01:00:59,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:00:59,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078131164] [2023-11-12 01:00:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078131164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:00:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074214868] [2023-11-12 01:00:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:59,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:00:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:00:59,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:00:59,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d703e482-04e9-4b3e-a76a-272fcb9fd745/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:01:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:00,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-12 01:01:00,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:00,654 INFO L351 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 15 treesize of output 1 [2023-11-12 01:01:00,663 INFO L351 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 8 treesize of output 1 [2023-11-12 01:01:04,835 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 01:01:04,836 INFO L351 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 24 treesize of output 20 [2023-11-12 01:01:09,717 INFO L351 Elim1Store]: Elim1 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 108 treesize of output 96 [2023-11-12 01:01:09,729 INFO L351 Elim1Store]: Elim1 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 96 treesize of output 84 [2023-11-12 01:01:09,769 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 01:01:09,771 INFO L351 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 121 treesize of output 97 [2023-11-12 01:01:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 01:01:09,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:01:12,834 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 56951 disjunctions. This might take some time...