./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 30e01a73 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 21:18:13,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:13,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:13,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:13,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:13,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:13,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:13,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:13,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:13,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:13,271 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:13,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:13,272 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:13,273 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:13,274 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:13,274 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:13,275 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:13,275 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:13,276 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:13,276 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:13,277 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:13,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:13,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:13,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:13,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:13,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:13,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:13,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:13,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:13,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:13,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:13,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:13,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:13,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:13,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:13,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:13,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:13,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:13,284 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:13,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:13,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:13,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:13,286 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:13,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:13,286 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2023-11-23 21:18:13,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:13,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:13,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:13,584 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:13,584 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:13,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-23 21:18:16,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:17,313 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:17,315 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-23 21:18:17,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/data/04000682a/f552274d29e14f809204b91ac9a7c725/FLAG10e2b54e4 [2023-11-23 21:18:17,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/data/04000682a/f552274d29e14f809204b91ac9a7c725 [2023-11-23 21:18:17,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:17,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:17,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:17,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:17,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:17,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:17" (1/1) ... [2023-11-23 21:18:17,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b88ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:17, skipping insertion in model container [2023-11-23 21:18:17,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:17" (1/1) ... [2023-11-23 21:18:17,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:17,887 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-23 21:18:17,897 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-23 21:18:19,178 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,192 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,193 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,198 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,222 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,223 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:19,949 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:18:19,951 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:18:19,953 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:18:19,954 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:18:19,957 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:18:19,958 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:18:19,959 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:18:19,960 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:18:19,961 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:18:19,962 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:18:20,479 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,480 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:20,642 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:20,661 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2023-11-23 21:18:20,662 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_4c8d227e-8479-4f45-a5a1-9db478df7f6f/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2023-11-23 21:18:20,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,731 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,738 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,738 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:18:20,804 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:18:20,805 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:18:20,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:18:20,807 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:18:20,808 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:18:20,809 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:18:20,810 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:18:20,810 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:18:20,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:18:20,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-23 21:18:20,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:18:20,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-23 21:18:20,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:21,279 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,279 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,280 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,280 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,280 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,281 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,281 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,282 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,282 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,283 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,283 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,283 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,283 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,284 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,284 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,284 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,284 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,285 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:21,293 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:21,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21 WrapperNode [2023-11-23 21:18:21,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:21,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:21,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:21,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:21,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,523 INFO L138 Inliner]: procedures = 690, calls = 2669, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 887 [2023-11-23 21:18:21,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:21,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:21,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:21,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:21,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:21,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:21,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:21,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:21,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (1/1) ... [2023-11-23 21:18:21,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:21,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:21,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:21,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 21:18:21,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 21:18:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:18:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:18:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:18:21,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:18:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:18:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:18:21,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:18:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:18:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 21:18:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 21:18:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:18:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 21:18:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 21:18:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:18:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:18:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:18:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:18:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:18:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:18:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:18:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:18:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-23 21:18:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-23 21:18:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:18:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:18:21,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:18:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:18:21,744 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:18:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-23 21:18:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-23 21:18:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:18:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-23 21:18:21,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-23 21:18:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:22,069 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:22,072 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:23,465 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:23,820 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:23,821 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:18:23,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:23 BoogieIcfgContainer [2023-11-23 21:18:23,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:23,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:23,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:23,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:23,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:17" (1/3) ... [2023-11-23 21:18:23,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c4170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:23, skipping insertion in model container [2023-11-23 21:18:23,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:21" (2/3) ... [2023-11-23 21:18:23,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c4170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:23, skipping insertion in model container [2023-11-23 21:18:23,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:23" (3/3) ... [2023-11-23 21:18:23,837 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2023-11-23 21:18:23,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:23,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:23,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:23,943 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;@4e2d7c15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:23,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:23,948 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) [2023-11-23 21:18:23,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:18:23,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:23,962 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] [2023-11-23 21:18:23,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:23,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1339358585, now seen corresponding path program 1 times [2023-11-23 21:18:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549699490] [2023-11-23 21:18:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:23,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:18:47,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:47,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549699490] [2023-11-23 21:18:47,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549699490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:18:47,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344396436] [2023-11-23 21:18:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:47,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:18:47,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:47,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:18:47,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8d227e-8479-4f45-a5a1-9db478df7f6f/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:18:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:48,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 179 conjunts are in the unsatisfiable core [2023-11-23 21:18:48,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:48,874 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 [2023-11-23 21:18:49,303 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 [2023-11-23 21:18:49,312 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 [2023-11-23 21:18:49,333 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 [2023-11-23 21:18:49,353 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 [2023-11-23 21:18:49,368 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