./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 0e0057cc 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:15:31,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:31,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:15:31,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:31,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:31,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:31,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:31,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:31,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:31,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:31,540 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:31,542 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:31,542 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:31,544 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:15:31,545 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:31,545 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:31,546 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:15:31,546 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:15:31,547 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:31,547 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:15:31,548 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:15:31,548 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:15:31,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:31,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:31,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:15:31,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:31,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:31,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:31,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:31,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:31,554 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:31,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:31,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:15:31,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:31,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:31,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:31,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:31,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:31,557 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:15:31,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:15:31,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:31,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:31,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:31,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:31,559 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2023-11-24 23:15:31,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:31,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:31,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:31,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:31,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:31,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-24 23:15:34,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:15:35,648 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:15:35,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-24 23:15:35,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/data/17f571aa4/9d7c958e6f384652bba0e4891b41446a/FLAG8d3ee0102 [2023-11-24 23:15:35,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/data/17f571aa4/9d7c958e6f384652bba0e4891b41446a [2023-11-24 23:15:35,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:15:35,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:15:35,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:35,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:15:35,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:15:35,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:35" (1/1) ... [2023-11-24 23:15:35,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378ed5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:35, skipping insertion in model container [2023-11-24 23:15:35,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:35" (1/1) ... [2023-11-24 23:15:35,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:15:36,197 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-24 23:15:36,207 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-24 23:15:37,422 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,423 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,424 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,425 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,426 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,444 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,445 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,447 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:37,448 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,065 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:15:38,066 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:15:38,067 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:15:38,068 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:15:38,070 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:15:38,071 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:15:38,072 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:15:38,073 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:15:38,073 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:15:38,074 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:15:38,362 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,363 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:38,519 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:15:38,535 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-24 23:15:38,536 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_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-24 23:15:38,580 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,581 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,581 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,582 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,583 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,607 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,608 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,609 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,678 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:15:38,679 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:15:38,680 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:15:38,681 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:15:38,683 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:15:38,684 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:15:38,685 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:15:38,686 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:15:38,687 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:15:38,687 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:15:38,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-24 23:15:38,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,881 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:15:38,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-24 23:15:38,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:39,310 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,311 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,311 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,312 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,312 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,312 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,312 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,313 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,314 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,314 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,314 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,314 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,314 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:39,324 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:15:39,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39 WrapperNode [2023-11-24 23:15:39,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:39,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:39,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:15:39,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:15:39,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,611 INFO L138 Inliner]: procedures = 690, calls = 2669, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 887 [2023-11-24 23:15:39,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:39,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:15:39,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:15:39,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:15:39,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:15:39,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:15:39,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:15:39,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:15:39,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (1/1) ... [2023-11-24 23:15:39,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:39,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:39,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:15:39,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:15:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-24 23:15:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-24 23:15:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:15:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:15:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:15:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:15:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:15:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:15:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:15:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:15:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:15:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-24 23:15:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-24 23:15:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:15:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-24 23:15:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-24 23:15:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:15:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:15:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:15:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:15:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-24 23:15:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-24 23:15:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:15:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:15:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:15:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:15:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-24 23:15:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-24 23:15:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:15:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-24 23:15:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-24 23:15:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:15:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:15:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-24 23:15:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-24 23:15:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:15:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-24 23:15:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-24 23:15:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:15:40,269 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:15:40,271 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:15:41,714 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:15:42,034 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:15:42,034 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:15:42,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:42 BoogieIcfgContainer [2023-11-24 23:15:42,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:15:42,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:15:42,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:15:42,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:15:42,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:15:35" (1/3) ... [2023-11-24 23:15:42,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5eab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:42, skipping insertion in model container [2023-11-24 23:15:42,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:39" (2/3) ... [2023-11-24 23:15:42,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5eab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:42, skipping insertion in model container [2023-11-24 23:15:42,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:42" (3/3) ... [2023-11-24 23:15:42,049 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2023-11-24 23:15:42,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:15:42,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:15:42,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:15:42,153 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;@446d1ccd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:15:42,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:15:42,159 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) [2023-11-24 23:15:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-24 23:15:42,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:42,175 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] [2023-11-24 23:15:42,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:42,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:42,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1339358585, now seen corresponding path program 1 times [2023-11-24 23:15:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:42,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52821757] [2023-11-24 23:15:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:42,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-24 23:16:04,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:16:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52821757] [2023-11-24 23:16:04,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52821757] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:16:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177867623] [2023-11-24 23:16:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:04,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:16:04,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:16:04,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:16:04,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df22231-c6b1-46b7-9a45-3ca0a7eb2e5a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:16:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:05,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 132 conjunts are in the unsatisfiable core [2023-11-24 23:16:05,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:05,442 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 [2023-11-24 23:16:05,935 INFO L378 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 [2023-11-24 23:16:05,946 INFO L378 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 19 treesize of output 1 [2023-11-24 23:16:07,125 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 [2023-11-24 23:16:07,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-24 23:16:07,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2023-11-24 23:16:07,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-11-24 23:16:07,342 INFO L378 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 8 treesize of output 4