./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_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_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/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_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/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_419edb39-5ee1-4fef-b205-78dea88a73ff/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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:28,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:28,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:58:28,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:28,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:28,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:28,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:28,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:28,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:28,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:28,537 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:28,537 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:28,538 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:28,539 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:28,539 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:28,540 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:28,541 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:28,541 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:28,542 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:28,543 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:28,543 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:28,544 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:28,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:28,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:28,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:28,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:28,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:28,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:28,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:28,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:28,550 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:28,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:28,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:28,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:28,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:28,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:28,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:28,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:28,553 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:28,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:28,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:28,555 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:28,555 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:28,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:28,556 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_419edb39-5ee1-4fef-b205-78dea88a73ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2023-11-24 23:58:28,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:28,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:28,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:28,894 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:28,894 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:28,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2023-11-24 23:58:31,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:32,586 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:32,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2023-11-24 23:58:32,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/data/9d1a15741/ad854d6c31e549f1a959768d6916e66d/FLAG9a23facb1 [2023-11-24 23:58:32,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/data/9d1a15741/ad854d6c31e549f1a959768d6916e66d [2023-11-24 23:58:32,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:32,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:32,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:32,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:32,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:32,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:32" (1/1) ... [2023-11-24 23:58:32,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c44ea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:32, skipping insertion in model container [2023-11-24 23:58:32,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:32" (1/1) ... [2023-11-24 23:58:32,825 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:33,122 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_419edb39-5ee1-4fef-b205-78dea88a73ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2023-11-24 23:58:33,132 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_419edb39-5ee1-4fef-b205-78dea88a73ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2023-11-24 23:58:34,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,286 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,286 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,287 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,289 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,305 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,305 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,308 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,308 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:34,794 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:58:34,795 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:58:34,797 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:58:34,798 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:58:34,800 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:58:34,801 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:58:34,801 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:58:34,802 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:58:34,803 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:58:34,803 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:58:35,130 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:35,303 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:35,318 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_419edb39-5ee1-4fef-b205-78dea88a73ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2023-11-24 23:58:35,322 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_419edb39-5ee1-4fef-b205-78dea88a73ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2023-11-24 23:58:35,366 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,366 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,367 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,367 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,368 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,375 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,375 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,412 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:58:35,413 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:58:35,414 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:58:35,415 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:58:35,416 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:58:35,416 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:58:35,417 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:58:35,417 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:58:35,418 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:58:35,418 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:58:35,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-24 23:58:35,587 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,588 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:58:35,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-24 23:58:35,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:35,898 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,898 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,898 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,899 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,900 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,901 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,901 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,901 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:58:35,909 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:35,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35 WrapperNode [2023-11-24 23:58:35,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:35,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:35,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:35,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:35,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,127 INFO L138 Inliner]: procedures = 690, calls = 2652, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 828 [2023-11-24 23:58:36,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:36,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:36,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:36,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:36,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:36,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:36,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:36,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:36,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (1/1) ... [2023-11-24 23:58:36,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:36,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:36,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:36,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:36,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-24 23:58:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-24 23:58:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:58:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:58:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:58:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:58:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-24 23:58:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-24 23:58:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:58:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:58:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:58:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-24 23:58:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-24 23:58:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:58:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:58:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:58:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-24 23:58:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-24 23:58:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:58:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:58:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:58:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:58:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:58:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:58:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-24 23:58:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-24 23:58:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2023-11-24 23:58:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2023-11-24 23:58:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:36,695 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:36,697 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:38,234 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:38,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:38,478 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:58:38,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:38 BoogieIcfgContainer [2023-11-24 23:58:38,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:38,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:38,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:38,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:38,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:32" (1/3) ... [2023-11-24 23:58:38,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f03e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:38, skipping insertion in model container [2023-11-24 23:58:38,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:35" (2/3) ... [2023-11-24 23:58:38,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f03e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:38, skipping insertion in model container [2023-11-24 23:58:38,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:38" (3/3) ... [2023-11-24 23:58:38,490 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2023-11-24 23:58:38,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:38,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:58:38,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:58:38,583 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;@3f556d8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:58:38,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:58:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-24 23:58:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-24 23:58:38,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:38,600 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-11-24 23:58:38,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:58:38,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1247321829, now seen corresponding path program 1 times [2023-11-24 23:58:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:38,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516427476] [2023-11-24 23:58:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-24 23:58:50,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:50,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516427476] [2023-11-24 23:58:50,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516427476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:58:50,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314368774] [2023-11-24 23:58:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:58:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:50,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:58:50,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419edb39-5ee1-4fef-b205-78dea88a73ff/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:58:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:51,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 93 conjunts are in the unsatisfiable core [2023-11-24 23:58:51,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:58:51,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-24 23:58:51,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-24 23:58:52,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:58:52,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:58:52,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:58:54,937 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:58:54,940 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 15 treesize of output 7 [2023-11-24 23:58:54,952 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:58:54,952 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 15 treesize of output 7 [2023-11-24 23:58:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 23:58:55,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:58:57,145 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-11-24 23:59:07,767 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.