./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 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/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_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/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_382378e3-7a6d-46f4-be79-36c85f5d74cb/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_382378e3-7a6d-46f4-be79-36c85f5d74cb/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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:07:08,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:07:08,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:07:08,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:07:08,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:07:08,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:07:08,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:07:08,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:07:08,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:07:08,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:07:08,527 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:07:08,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:07:08,529 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:07:08,531 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:07:08,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:07:08,532 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:07:08,532 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:07:08,533 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:07:08,533 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:07:08,534 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:07:08,534 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:07:08,535 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:07:08,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:07:08,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:07:08,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:07:08,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:07:08,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:07:08,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:07:08,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:07:08,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:07:08,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:07:08,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:07:08,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:07:08,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:07:08,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:08,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:07:08,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:07:08,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:07:08,564 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:07:08,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:07:08,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:07:08,565 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:07:08,565 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:07:08,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:07:08,566 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2023-11-25 00:07:08,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:07:08,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:07:08,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:07:08,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:07:08,886 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:07:08,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-25 00:07:11,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:07:12,563 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:07:12,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-25 00:07:12,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/data/e2add7865/be2fba44ba51437ebcdfbc1cb577615c/FLAG9ce57468b [2023-11-25 00:07:12,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/data/e2add7865/be2fba44ba51437ebcdfbc1cb577615c [2023-11-25 00:07:12,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:07:12,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:07:12,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:12,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:07:12,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:07:12,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:12" (1/1) ... [2023-11-25 00:07:12,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3129ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:12, skipping insertion in model container [2023-11-25 00:07:12,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:12" (1/1) ... [2023-11-25 00:07:12,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:07:13,106 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-25 00:07:13,116 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-25 00:07:14,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,379 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,398 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,400 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:14,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,038 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:07:15,039 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:07:15,041 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:07:15,042 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:07:15,044 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:07:15,045 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:07:15,046 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:07:15,047 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:07:15,048 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:07:15,049 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:07:15,533 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,533 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:15,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:07:15,738 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-25 00:07:15,739 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_382378e3-7a6d-46f4-be79-36c85f5d74cb/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-25 00:07:15,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,799 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,800 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,801 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,812 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,816 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,817 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:15,887 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:07:15,888 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:07:15,889 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:07:15,890 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:07:15,895 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:07:15,895 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:07:15,896 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:07:15,897 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:07:15,897 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:07:15,898 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:07:16,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-25 00:07:16,029 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:16,029 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:07:16,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-25 00:07:16,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:16,327 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,328 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,328 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,328 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,328 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,328 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,329 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,330 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,330 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,330 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,330 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,330 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,331 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:07:16,337 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:07:16,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16 WrapperNode [2023-11-25 00:07:16,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:16,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:16,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:07:16,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:07:16,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,553 INFO L138 Inliner]: procedures = 690, calls = 2642, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2023-11-25 00:07:16,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:16,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:07:16,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:07:16,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:07:16,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:07:16,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:07:16,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:07:16,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:07:16,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (1/1) ... [2023-11-25 00:07:16,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:16,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:16,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:07:16,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:07:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-11-25 00:07:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-11-25 00:07:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-25 00:07:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-25 00:07:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:07:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-25 00:07:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-25 00:07:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:07:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:07:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-25 00:07:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:07:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:07:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-25 00:07:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-25 00:07:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-25 00:07:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-25 00:07:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:07:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:07:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:07:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:07:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:07:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-25 00:07:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-25 00:07:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-25 00:07:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-25 00:07:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:07:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:07:17,191 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:07:17,194 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:07:18,534 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:07:18,781 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:07:18,781 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:07:18,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:18 BoogieIcfgContainer [2023-11-25 00:07:18,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:07:18,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:07:18,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:07:18,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:07:18,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:07:12" (1/3) ... [2023-11-25 00:07:18,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39897234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:18, skipping insertion in model container [2023-11-25 00:07:18,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:16" (2/3) ... [2023-11-25 00:07:18,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39897234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:18, skipping insertion in model container [2023-11-25 00:07:18,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:18" (3/3) ... [2023-11-25 00:07:18,792 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2023-11-25 00:07:18,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:07:18,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:07:18,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:07:18,871 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;@733de9af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:07:18,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:07:18,876 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) [2023-11-25 00:07:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-25 00:07:18,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:18,889 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] [2023-11-25 00:07:18,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:07:18,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1025664609, now seen corresponding path program 1 times [2023-11-25 00:07:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:18,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135138980] [2023-11-25 00:07:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-25 00:07:41,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135138980] [2023-11-25 00:07:41,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135138980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:07:41,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786844735] [2023-11-25 00:07:41,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:41,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:41,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:41,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:41,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_382378e3-7a6d-46f4-be79-36c85f5d74cb/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:07:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:42,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-25 00:07:42,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:43,650 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 15 treesize of output 1 [2023-11-25 00:07:48,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:07:48,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20