./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/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_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/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_fffeb20b-425c-44ec-9deb-4b7270a2551e/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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:46,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:46,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:21:46,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:46,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:46,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:46,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:46,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:46,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:46,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:46,325 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:46,326 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:46,326 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:46,327 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:46,327 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:46,328 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:46,328 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:46,329 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:46,329 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:46,329 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:46,330 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:46,331 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:46,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:46,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:46,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:46,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:46,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:46,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:46,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:46,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:46,334 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:46,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:46,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:46,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:46,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:46,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:46,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:46,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:46,344 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:46,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:46,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:46,345 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:46,345 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:46,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:46,345 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_fffeb20b-425c-44ec-9deb-4b7270a2551e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2023-11-23 21:21:46,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:46,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:46,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:46,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:46,708 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:46,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-23 21:21:49,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:50,579 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:50,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-23 21:21:50,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/data/dabfdce8a/0a653ecd54c94bb3ae9f02381500a434/FLAGbc43d676f [2023-11-23 21:21:50,643 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/data/dabfdce8a/0a653ecd54c94bb3ae9f02381500a434 [2023-11-23 21:21:50,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:50,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:50,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:50,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:50,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:50,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:50" (1/1) ... [2023-11-23 21:21:50,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec470af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:50, skipping insertion in model container [2023-11-23 21:21:50,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:50" (1/1) ... [2023-11-23 21:21:50,808 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:51,161 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_fffeb20b-425c-44ec-9deb-4b7270a2551e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-23 21:21:51,171 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_fffeb20b-425c-44ec-9deb-4b7270a2551e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-23 21:21:52,498 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,499 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,500 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,501 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,502 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,518 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,519 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,522 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:52,522 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,149 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:21:53,151 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:21:53,152 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:21:53,154 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:21:53,156 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:21:53,157 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:21:53,157 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:21:53,161 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:21:53,162 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:21:53,166 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:21:53,727 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,729 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:53,907 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:53,930 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_fffeb20b-425c-44ec-9deb-4b7270a2551e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-23 21:21:53,931 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_fffeb20b-425c-44ec-9deb-4b7270a2551e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-23 21:21:53,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,998 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:53,999 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:54,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:54,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:54,049 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:21:54,050 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:21:54,051 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:21:54,052 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:21:54,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:21:54,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:21:54,054 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:21:54,054 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:21:54,055 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:21:54,058 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:21:54,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-23 21:21:54,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:54,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:21:54,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-23 21:21:54,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:54,449 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,449 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,449 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,449 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,450 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,451 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,452 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,452 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,459 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:54,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54 WrapperNode [2023-11-23 21:21:54,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:54,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:54,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:54,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:54,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,731 INFO L138 Inliner]: procedures = 690, calls = 2654, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 934 [2023-11-23 21:21:54,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:54,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:54,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:54,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:54,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:54,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:54,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:54,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:54,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:54,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:54,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:54,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 21:21:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 21:21:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:21:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:21:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:21:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:21:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:21:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:21:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:21:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:21:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:21:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:21:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 21:21:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 21:21:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:21:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:21:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:21:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:21:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:21:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:21:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:21:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:21:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:21:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-23 21:21:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-23 21:21:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:21:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:21:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:21:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:21:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:21:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:21:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:55,239 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:55,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:56,561 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:57,124 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:57,124 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:21:57,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:57 BoogieIcfgContainer [2023-11-23 21:21:57,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:57,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:57,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:57,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:57,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:50" (1/3) ... [2023-11-23 21:21:57,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9dfd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:57, skipping insertion in model container [2023-11-23 21:21:57,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (2/3) ... [2023-11-23 21:21:57,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9dfd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:57, skipping insertion in model container [2023-11-23 21:21:57,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:57" (3/3) ... [2023-11-23 21:21:57,140 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2023-11-23 21:21:57,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:57,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:21:57,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:57,243 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;@2384bacb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:57,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:21:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 21:21:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:21:57,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:57,263 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 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, 1, 1, 1] [2023-11-23 21:21:57,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:57,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash -199054923, now seen corresponding path program 1 times [2023-11-23 21:21:57,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:57,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925118349] [2023-11-23 21:21:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-23 21:22:11,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:11,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925118349] [2023-11-23 21:22:11,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925118349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:22:11,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296459834] [2023-11-23 21:22:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:11,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:11,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:11,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:11,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fffeb20b-425c-44ec-9deb-4b7270a2551e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:22:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:12,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 153 conjunts are in the unsatisfiable core [2023-11-23 21:22:12,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:12,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-23 21:22:12,395 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 21:22:12,402 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 21:22:14,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 21:22:14,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 21:22:14,885 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 [2023-11-23 21:22:15,309 INFO L349 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2023-11-23 21:22:15,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 29 [2023-11-23 21:22:15,340 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-23 21:22:15,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 25 [2023-11-23 21:22:15,397 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