./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5 --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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:48:19,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:48:19,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:48:19,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:48:19,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:48:19,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:48:19,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:48:19,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:48:19,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:48:19,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:48:19,994 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:48:19,995 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:48:19,996 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:48:19,997 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:48:19,998 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:48:19,998 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:48:19,999 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:48:19,999 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:48:19,999 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:48:20,000 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:48:20,002 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:48:20,003 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:48:20,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:48:20,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:48:20,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:48:20,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:48:20,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:48:20,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:48:20,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:48:20,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:48:20,008 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:48:20,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:48:20,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:48:20,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:48:20,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:48:20,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:48:20,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:48:20,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:48:20,010 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:48:20,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:48:20,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:48:20,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:48:20,011 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:48:20,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:48:20,012 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_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2023-11-21 19:48:20,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:48:20,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:48:20,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:48:20,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:48:20,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:48:20,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-21 19:48:23,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:48:23,893 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:48:23,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-21 19:48:23,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/data/9255ade86/453b1275d15f4091835cccacfd0ff251/FLAG0ca4306c6 [2023-11-21 19:48:23,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/data/9255ade86/453b1275d15f4091835cccacfd0ff251 [2023-11-21 19:48:23,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:48:23,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:48:23,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:48:23,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:48:23,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:48:23,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:48:23" (1/1) ... [2023-11-21 19:48:23,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efbaa32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:23, skipping insertion in model container [2023-11-21 19:48:23,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:48:23" (1/1) ... [2023-11-21 19:48:24,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:48:24,524 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_78137773-15e0-4e99-bbff-16b84ad10a93/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-21 19:48:24,533 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_78137773-15e0-4e99-bbff-16b84ad10a93/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-21 19:48:25,597 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,599 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,618 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,619 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,621 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:25,622 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,048 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:48:26,049 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:48:26,050 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:48:26,052 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:48:26,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:48:26,054 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:48:26,055 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:48:26,056 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:48:26,056 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:48:26,057 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:48:26,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,356 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:48:26,546 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:48:26,577 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_78137773-15e0-4e99-bbff-16b84ad10a93/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-21 19:48:26,577 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_78137773-15e0-4e99-bbff-16b84ad10a93/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-21 19:48:26,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,648 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,650 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,663 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,721 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:48:26,722 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:48:26,723 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:48:26,724 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:48:26,724 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:48:26,725 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:48:26,725 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:48:26,726 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:48:26,726 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:48:26,727 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:48:26,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-21 19:48:26,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:48:26,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-21 19:48:26,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:48:27,275 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,275 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,276 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,276 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,276 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,276 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,277 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,277 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,277 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,278 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,278 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,278 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,278 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,279 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,279 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,279 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,280 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,280 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:48:27,287 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:48:27,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27 WrapperNode [2023-11-21 19:48:27,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:48:27,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:48:27,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:48:27,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:48:27,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,556 INFO L138 Inliner]: procedures = 690, calls = 2669, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 887 [2023-11-21 19:48:27,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:48:27,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:48:27,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:48:27,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:48:27,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:48:27,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:48:27,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:48:27,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:48:27,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (1/1) ... [2023-11-21 19:48:27,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:48:27,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:48:27,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:48:27,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:48:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-21 19:48:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-21 19:48:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:48:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:48:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 19:48:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 19:48:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:48:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:48:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:48:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:48:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:48:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-21 19:48:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-21 19:48:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:48:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-21 19:48:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-21 19:48:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:48:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:48:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:48:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:48:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 19:48:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 19:48:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:48:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-21 19:48:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 19:48:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 19:48:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 19:48:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 19:48:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-21 19:48:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-21 19:48:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:48:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-21 19:48:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-21 19:48:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:48:28,112 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:48:28,114 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:48:29,809 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:48:30,106 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:48:30,106 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:48:30,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:48:30 BoogieIcfgContainer [2023-11-21 19:48:30,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:48:30,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:48:30,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:48:30,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:48:30,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:48:23" (1/3) ... [2023-11-21 19:48:30,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a331905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:48:30, skipping insertion in model container [2023-11-21 19:48:30,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:48:27" (2/3) ... [2023-11-21 19:48:30,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a331905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:48:30, skipping insertion in model container [2023-11-21 19:48:30,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:48:30" (3/3) ... [2023-11-21 19:48:30,118 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2023-11-21 19:48:30,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:48:30,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:48:30,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:48:30,200 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;@79a51e04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:48:30,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:48:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-21 19:48:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-21 19:48:30,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:48:30,218 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:48:30,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:48:30,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:48:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1339358585, now seen corresponding path program 1 times [2023-11-21 19:48:30,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:48:30,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544218156] [2023-11-21 19:48:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:48:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:48:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:48:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-21 19:48:51,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:48:51,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544218156] [2023-11-21 19:48:51,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544218156] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:48:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260710524] [2023-11-21 19:48:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:48:51,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:48:51,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:48:51,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:48:51,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78137773-15e0-4e99-bbff-16b84ad10a93/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:48:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:48:52,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 179 conjunts are in the unsatisfiable core [2023-11-21 19:48:52,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:48:52,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2023-11-21 19:48:52,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2023-11-21 19:48:52,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2023-11-21 19:48:52,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-11-21 19:48:52,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2023-11-21 19:48:52,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23