./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:58,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:58,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:00:58,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:58,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:59,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:59,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:59,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:59,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:59,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:59,012 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:59,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:59,013 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:59,016 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:00:59,016 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:59,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:59,018 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:00:59,018 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:00:59,019 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:59,020 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:00:59,020 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:00:59,021 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:00:59,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:59,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:00:59,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:59,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:59,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:00:59,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:59,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:00:59,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:00:59,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:59,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:59,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:59,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:59,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:59,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:59,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:00:59,033 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:00:59,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:00:59,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:00:59,034 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:59,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:59,035 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_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2023-11-12 01:00:59,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:59,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:59,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:59,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:59,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:59,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-12 01:01:02,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:03,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:03,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-11-12 01:01:03,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/data/0f7e71284/6cf92a2b0bec416f8e3ed60584b25580/FLAGcad14c64c [2023-11-12 01:01:03,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/data/0f7e71284/6cf92a2b0bec416f8e3ed60584b25580 [2023-11-12 01:01:03,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:03,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:03,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:03,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:03,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:03,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:03" (1/1) ... [2023-11-12 01:01:03,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657d47d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:03, skipping insertion in model container [2023-11-12 01:01:03,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:03" (1/1) ... [2023-11-12 01:01:03,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:04,154 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_914105d6-5fdd-4751-b160-2aa8811973c9/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-12 01:01:04,163 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_914105d6-5fdd-4751-b160-2aa8811973c9/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-12 01:01:05,275 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,276 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,277 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,280 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,297 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,298 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,300 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,301 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:05,774 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:05,775 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:05,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:05,779 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:05,781 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:05,782 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:05,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:05,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:05,786 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:05,794 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:06,202 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,202 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:06,361 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:06,390 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_914105d6-5fdd-4751-b160-2aa8811973c9/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-11-12 01:01:06,392 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_914105d6-5fdd-4751-b160-2aa8811973c9/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-11-12 01:01:06,478 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,478 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,478 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,621 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:06,622 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:06,623 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:06,624 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:06,625 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:06,626 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:06,627 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:06,628 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:06,628 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:06,629 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:06,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-12 01:01:06,755 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,757 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-12 01:01:06,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:07,113 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,113 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,113 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,114 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,114 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,114 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,114 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,114 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,115 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,116 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,116 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,116 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,116 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,125 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:07,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07 WrapperNode [2023-11-12 01:01:07,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:07,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:07,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:07,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:07,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,354 INFO L138 Inliner]: procedures = 690, calls = 2642, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2023-11-12 01:01:07,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:07,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:07,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:07,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:07,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:07,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:07,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:07,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:07,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:07,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:07,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:07,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-11-12 01:01:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-11-12 01:01:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 01:01:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 01:01:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 01:01:07,611 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 01:01:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:01:07,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:01:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:01:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-12 01:01:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-12 01:01:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:01:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 01:01:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 01:01:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:01:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:01:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:01:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:01:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 01:01:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 01:01:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 01:01:07,617 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 01:01:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:08,034 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:08,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:09,866 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:10,232 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:10,233 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:01:10,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:10 BoogieIcfgContainer [2023-11-12 01:01:10,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:10,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:10,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:10,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:10,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:03" (1/3) ... [2023-11-12 01:01:10,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340ca708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:10, skipping insertion in model container [2023-11-12 01:01:10,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (2/3) ... [2023-11-12 01:01:10,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340ca708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:10, skipping insertion in model container [2023-11-12 01:01:10,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:10" (3/3) ... [2023-11-12 01:01:10,252 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2023-11-12 01:01:10,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:10,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:01:10,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:10,369 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;@44664d3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:10,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:01:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 01:01:10,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 01:01:10,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:10,393 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:10,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:10,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:10,403 INFO L85 PathProgramCache]: Analyzing trace with hash -875731628, now seen corresponding path program 1 times [2023-11-12 01:01:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:10,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055974541] [2023-11-12 01:01:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:10,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-12 01:01:35,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055974541] [2023-11-12 01:01:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055974541] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:01:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148640889] [2023-11-12 01:01:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:35,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:35,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:35,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914105d6-5fdd-4751-b160-2aa8811973c9/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:01:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:35,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 119 conjunts are in the unsatisfiable core [2023-11-12 01:01:35,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:36,649 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 01:01:41,275 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 01:01:41,276 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20