./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5 --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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:34:08,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:34:08,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:34:08,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:34:08,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:34:08,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:34:08,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:34:08,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:34:08,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:34:08,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:34:08,817 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:34:08,817 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:34:08,818 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:34:08,818 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:34:08,819 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:34:08,820 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:34:08,820 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:34:08,821 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:34:08,821 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:34:08,822 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:34:08,822 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:34:08,825 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:34:08,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:34:08,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:34:08,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:34:08,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:34:08,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:34:08,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:34:08,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:34:08,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:34:08,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:34:08,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:34:08,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:34:08,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:34:08,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:08,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:34:08,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:34:08,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:34:08,834 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:34:08,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:34:08,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:34:08,835 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:34:08,835 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:34:08,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:34:08,836 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2023-11-21 19:34:09,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:34:09,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:34:09,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:34:09,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:34:09,222 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:34:09,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-21 19:34:12,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:34:13,087 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:34:13,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-21 19:34:13,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/data/59b8f1bcb/eeef7c7c36f349cdb9c172c15808a1c7/FLAGcf907f43e [2023-11-21 19:34:13,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/data/59b8f1bcb/eeef7c7c36f349cdb9c172c15808a1c7 [2023-11-21 19:34:13,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:34:13,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:34:13,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:13,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:34:13,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:34:13,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:13" (1/1) ... [2023-11-21 19:34:13,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d917a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:13, skipping insertion in model container [2023-11-21 19:34:13,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:13" (1/1) ... [2023-11-21 19:34:13,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:34:13,668 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-21 19:34:13,678 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-21 19:34:14,958 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,959 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,960 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,961 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,963 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:14,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:15,482 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:34:15,484 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:34:15,485 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:34:15,489 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:34:15,496 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:34:15,497 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:34:15,498 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:34:15,499 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:34:15,501 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:34:15,504 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:34:15,716 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:15,716 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:15,792 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:15,793 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:15,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:15,936 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:34:15,965 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-21 19:34:15,966 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_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-21 19:34:16,022 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,023 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,024 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,024 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,025 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,033 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,034 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,036 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,129 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:34:16,130 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:34:16,131 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:34:16,135 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:34:16,137 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:34:16,138 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:34:16,139 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:34:16,140 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:34:16,142 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:34:16,144 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:34:16,228 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,308 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2023-11-21 19:34:16,310 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,310 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:34:16,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2023-11-21 19:34:16,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:16,697 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,698 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,698 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,698 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,699 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,699 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,699 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,699 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,699 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,700 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,700 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,700 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,700 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,701 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,701 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,701 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,701 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,701 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:34:16,711 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:34:16,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16 WrapperNode [2023-11-21 19:34:16,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:16,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:16,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:34:16,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:34:16,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:16,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:16,947 INFO L138 Inliner]: procedures = 690, calls = 2649, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2023-11-21 19:34:16,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:16,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:34:16,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:34:16,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:34:16,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:16,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:34:17,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:34:17,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:34:17,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:34:17,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (1/1) ... [2023-11-21 19:34:17,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:17,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:17,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:34:17,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:34:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-21 19:34:17,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-21 19:34:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-21 19:34:17,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-21 19:34:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:34:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 19:34:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 19:34:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:34:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 19:34:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 19:34:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:34:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:34:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:34:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:34:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:34:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:34:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:34:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:34:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:34:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:34:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:34:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:34:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-21 19:34:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-21 19:34:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:34:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:34:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 19:34:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 19:34:17,254 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-21 19:34:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-21 19:34:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-21 19:34:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-21 19:34:17,255 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 19:34:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 19:34:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:34:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:34:17,658 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:34:17,661 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:34:19,517 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:34:20,056 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:34:20,056 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:34:20,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:20 BoogieIcfgContainer [2023-11-21 19:34:20,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:34:20,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:34:20,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:34:20,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:34:20,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:34:13" (1/3) ... [2023-11-21 19:34:20,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7858126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:20, skipping insertion in model container [2023-11-21 19:34:20,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:16" (2/3) ... [2023-11-21 19:34:20,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7858126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:20, skipping insertion in model container [2023-11-21 19:34:20,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:20" (3/3) ... [2023-11-21 19:34:20,070 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2023-11-21 19:34:20,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:34:20,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:34:20,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:34:20,167 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;@25c72afd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:34:20,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:34:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-21 19:34:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 19:34:20,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:20,188 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 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] [2023-11-21 19:34:20,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:34:20,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:20,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1005803546, now seen corresponding path program 1 times [2023-11-21 19:34:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:20,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600625295] [2023-11-21 19:34:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-21 19:34:31,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:31,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600625295] [2023-11-21 19:34:31,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600625295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:31,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728138448] [2023-11-21 19:34:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:31,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:31,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:31,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:31,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1884a1f-e8fc-49a9-aa10-d7f157ac3c81/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:34:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:33,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-21 19:34:33,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:33,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 19:34:34,716 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 [2023-11-21 19:34:34,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 19:34:34,765 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-21 19:34:34,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2023-11-21 19:34:51,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:34:51,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 416 treesize of output 592 [2023-11-21 19:34:51,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:34:51,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 379 treesize of output 483 [2023-11-21 19:34:53,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:34:53,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 331 treesize of output 699