./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:13:57,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:13:57,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:13:57,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:13:57,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:13:57,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:13:57,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:13:57,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:13:57,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:13:57,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:13:57,539 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:13:57,540 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:13:57,541 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:13:57,541 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:13:57,542 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:13:57,542 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:13:57,543 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:13:57,543 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:13:57,544 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:13:57,544 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:13:57,545 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:13:57,545 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:13:57,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:13:57,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:13:57,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:13:57,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:13:57,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:13:57,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:13:57,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:13:57,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:13:57,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:13:57,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:13:57,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:13:57,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:13:57,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:57,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:13:57,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:13:57,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:13:57,555 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:13:57,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:13:57,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:13:57,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:13:57,556 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:13:57,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:13:57,557 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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2023-11-23 21:13:57,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:13:57,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:13:57,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:13:57,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:13:57,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:13:57,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-23 21:14:01,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:01,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:01,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-23 21:14:01,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/data/dfe6c7256/161d3812448842adbf4e30c4929fad83/FLAGd5d6e63e7 [2023-11-23 21:14:01,742 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/data/dfe6c7256/161d3812448842adbf4e30c4929fad83 [2023-11-23 21:14:01,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:01,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:01,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:01,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:01,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:01,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:01" (1/1) ... [2023-11-23 21:14:01,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b4101c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:01, skipping insertion in model container [2023-11-23 21:14:01,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:01" (1/1) ... [2023-11-23 21:14:01,947 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:02,286 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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-23 21:14:02,295 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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-23 21:14:03,418 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,419 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,421 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,422 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,460 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,462 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,464 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,464 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:03,962 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:14:03,963 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:14:03,965 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:14:03,966 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:14:03,968 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:14:03,968 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:14:03,969 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:14:03,970 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:14:03,971 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:14:03,972 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:14:04,367 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,368 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:04,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:04,507 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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-23 21:14:04,508 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_8744f9d1-1475-46fd-bf73-06a1c9102a4d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-23 21:14:04,544 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,545 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,545 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,546 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,546 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,554 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,555 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,587 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:14:04,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:14:04,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:14:04,590 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:14:04,591 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:14:04,592 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:14:04,592 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:14:04,593 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:14:04,593 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:14:04,594 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:14:04,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-23 21:14:04,743 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,744 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:14:04,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-23 21:14:04,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:05,046 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,047 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,047 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,053 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,053 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,054 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,054 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,054 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,054 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,055 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,056 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,056 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,056 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,057 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,057 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,057 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,057 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,058 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:05,066 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:05,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05 WrapperNode [2023-11-23 21:14:05,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:05,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:05,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:05,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:05,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,260 INFO L138 Inliner]: procedures = 690, calls = 2642, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2023-11-23 21:14:05,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:05,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:05,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:05,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:05,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:05,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:05,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:05,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:05,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:05,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:05,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:05,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-11-23 21:14:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-11-23 21:14:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 21:14:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 21:14:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:14:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:14:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:14:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:14:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 21:14:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 21:14:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:14:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:14:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:14:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:14:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:14:05,477 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:14:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:14:05,477 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:14:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:05,734 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:05,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:07,233 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:07,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:07,650 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:14:07,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:07 BoogieIcfgContainer [2023-11-23 21:14:07,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:07,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:07,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:07,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:07,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:01" (1/3) ... [2023-11-23 21:14:07,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1f36af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:07, skipping insertion in model container [2023-11-23 21:14:07,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05" (2/3) ... [2023-11-23 21:14:07,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1f36af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:07, skipping insertion in model container [2023-11-23 21:14:07,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:07" (3/3) ... [2023-11-23 21:14:07,666 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2023-11-23 21:14:07,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:07,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:07,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:07,785 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;@117c8796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:07,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:07,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 21:14:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 21:14:07,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:07,810 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 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] [2023-11-23 21:14:07,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:07,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1025664609, now seen corresponding path program 1 times [2023-11-23 21:14:07,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:07,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161393386] [2023-11-23 21:14:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:07,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-23 21:14:29,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:29,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161393386] [2023-11-23 21:14:29,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161393386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:14:29,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179660875] [2023-11-23 21:14:29,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:29,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:29,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:29,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:29,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744f9d1-1475-46fd-bf73-06a1c9102a4d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:14:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:30,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 119 conjunts are in the unsatisfiable core [2023-11-23 21:14:30,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:31,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1