./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_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_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/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_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/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_8d01f3b4-dad0-4465-87f8-286ac6390176/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 f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:13,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:13,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:13,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:13,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:13,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:13,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:13,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:13,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:13,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:13,391 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:13,392 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:13,393 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:13,393 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:13,394 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:13,394 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:13,395 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:13,396 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:13,396 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:13,397 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:13,398 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:13,398 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:13,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:13,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:13,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:13,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:13,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:13,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:13,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:13,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:13,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:13,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:13,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:13,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:13,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:13,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:13,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:13,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:13,407 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:13,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:13,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:13,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:13,408 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:13,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:13,409 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_8d01f3b4-dad0-4465-87f8-286ac6390176/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2023-11-23 21:16:13,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:13,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:13,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:13,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:13,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:13,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2023-11-23 21:16:17,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:17,774 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:17,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2023-11-23 21:16:17,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/data/ba3d75d2d/6d738206f0444e1680a900439444e15f/FLAGe470c11d8 [2023-11-23 21:16:17,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/data/ba3d75d2d/6d738206f0444e1680a900439444e15f [2023-11-23 21:16:17,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:17,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:17,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:17,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:17,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:17,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:17,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4bba6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:17, skipping insertion in model container [2023-11-23 21:16:17,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:17" (1/1) ... [2023-11-23 21:16:18,052 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:18,446 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_8d01f3b4-dad0-4465-87f8-286ac6390176/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2023-11-23 21:16:18,456 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_8d01f3b4-dad0-4465-87f8-286ac6390176/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2023-11-23 21:16:19,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,617 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,622 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,626 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,640 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,641 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:19,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,163 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:16:20,165 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:16:20,166 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:16:20,168 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:16:20,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:16:20,171 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:16:20,172 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:16:20,173 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:16:20,174 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:16:20,175 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:16:20,501 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,516 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:20,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:20,790 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_8d01f3b4-dad0-4465-87f8-286ac6390176/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2023-11-23 21:16:20,792 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_8d01f3b4-dad0-4465-87f8-286ac6390176/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2023-11-23 21:16:20,879 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,881 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,906 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,910 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,911 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:20,980 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:16:20,981 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:16:20,982 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:16:20,983 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:16:20,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:16:20,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:16:20,986 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:16:20,989 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:16:20,990 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:16:20,991 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:16:21,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-23 21:16:21,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:21,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:16:21,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-23 21:16:21,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:21,419 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,419 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,420 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,421 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,421 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,421 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,421 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,421 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,422 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,422 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,422 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:21,428 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:21,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21 WrapperNode [2023-11-23 21:16:21,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:21,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:21,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:21,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:21,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,688 INFO L138 Inliner]: procedures = 689, calls = 2634, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 995 [2023-11-23 21:16:21,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:21,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:21,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:21,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:21,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:21,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:21,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:21,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:21,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (1/1) ... [2023-11-23 21:16:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:21,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:21,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2023-11-23 21:16:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2023-11-23 21:16:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:16:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:16:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:16:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:16:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-23 21:16:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:16:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:16:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:16:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:16:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:16:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:16:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:16:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-23 21:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:22,324 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:22,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:24,047 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:24,634 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:24,634 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:16:24,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:24 BoogieIcfgContainer [2023-11-23 21:16:24,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:24,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:24,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:24,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:24,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:17" (1/3) ... [2023-11-23 21:16:24,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e74a2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:24, skipping insertion in model container [2023-11-23 21:16:24,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:21" (2/3) ... [2023-11-23 21:16:24,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e74a2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:24, skipping insertion in model container [2023-11-23 21:16:24,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:24" (3/3) ... [2023-11-23 21:16:24,651 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2023-11-23 21:16:24,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:24,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:24,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:24,762 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;@2028e410, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:24,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-23 21:16:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:16:24,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:24,783 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 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 21:16:24,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:24,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:24,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1450680062, now seen corresponding path program 1 times [2023-11-23 21:16:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:24,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142375750] [2023-11-23 21:16:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:24,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-11-23 21:16:40,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:40,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142375750] [2023-11-23 21:16:40,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142375750] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:40,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955887061] [2023-11-23 21:16:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:40,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:40,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:40,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:40,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d01f3b4-dad0-4465-87f8-286ac6390176/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:41,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-23 21:16:41,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:41,351 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 8 treesize of output 1 [2023-11-23 21:16:41,356 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 11 treesize of output 7 [2023-11-23 21:16:41,363 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 11 treesize of output 7 [2023-11-23 21:16:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 21:16:47,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:48,236 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-23 21:17:00,355 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.