./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:38:41,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:38:41,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:38:41,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:38:41,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:38:41,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:38:41,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:38:41,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:38:41,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:38:41,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:38:41,159 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:38:41,160 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:38:41,160 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:38:41,161 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:38:41,161 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:38:41,162 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:38:41,163 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:38:41,163 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:38:41,164 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:38:41,165 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:38:41,165 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:38:41,166 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:38:41,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:38:41,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:38:41,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:38:41,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:38:41,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:38:41,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:38:41,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:38:41,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:38:41,171 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:38:41,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:38:41,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:38:41,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:38:41,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:38:41,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:38:41,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:38:41,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:38:41,175 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:38:41,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:38:41,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:38:41,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:38:41,177 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:38:41,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:38:41,178 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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2023-11-21 19:38:41,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:38:41,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:38:41,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:38:41,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:38:41,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:38:41,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-21 19:38:44,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:38:45,326 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:38:45,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-21 19:38:45,381 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/data/93b91e94d/4986629577d54660a99cb6009e4e258a/FLAG16d8473bd [2023-11-21 19:38:45,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/data/93b91e94d/4986629577d54660a99cb6009e4e258a [2023-11-21 19:38:45,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:38:45,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:38:45,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:38:45,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:38:45,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:38:45,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:38:45" (1/1) ... [2023-11-21 19:38:45,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286e5c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:45, skipping insertion in model container [2023-11-21 19:38:45,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:38:45" (1/1) ... [2023-11-21 19:38:45,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:38:45,832 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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-21 19:38:45,841 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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-21 19:38:46,963 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,965 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,966 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,972 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:46,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:47,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:38:47,584 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:38:47,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:38:47,586 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:38:47,588 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:38:47,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:38:47,590 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:38:47,590 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:38:47,591 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:38:47,592 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:38:48,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:38:48,177 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:38:48,192 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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-21 19:38:48,193 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_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-21 19:38:48,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,234 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,234 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,235 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,235 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,243 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,244 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,244 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,281 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:38:48,282 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:38:48,282 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:38:48,283 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:38:48,284 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:38:48,285 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:38:48,285 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:38:48,286 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:38:48,287 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:38:48,287 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:38:48,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-21 19:38:48,365 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,365 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:38:48,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-21 19:38:48,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:38:48,632 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,632 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,633 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,633 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,633 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,633 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,633 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,634 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,634 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,634 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,634 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,634 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,635 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,635 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,635 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,635 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,635 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,636 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:38:48,645 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:38:48,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48 WrapperNode [2023-11-21 19:38:48,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:38:48,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:38:48,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:38:48,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:38:48,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:48,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:48,954 INFO L138 Inliner]: procedures = 689, calls = 2640, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 874 [2023-11-21 19:38:48,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:38:48,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:38:48,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:38:48,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:38:48,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:48,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:48,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:48,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:38:49,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:38:49,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:38:49,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:38:49,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (1/1) ... [2023-11-21 19:38:49,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:38:49,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:38:49,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:38:49,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-21 19:38:49,213 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-21 19:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 19:38:49,214 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 19:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-21 19:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:38:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:38:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:38:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:38:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:38:49,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:38:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:38:49,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:38:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 19:38:49,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 19:38:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:38:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:38:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:38:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:38:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-21 19:38:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-21 19:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 19:38:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 19:38:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 19:38:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 19:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-21 19:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:38:49,606 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:38:49,609 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:38:51,682 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:38:52,071 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:38:52,072 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:38:52,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:38:52 BoogieIcfgContainer [2023-11-21 19:38:52,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:38:52,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:38:52,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:38:52,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:38:52,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:38:45" (1/3) ... [2023-11-21 19:38:52,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57107c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:38:52, skipping insertion in model container [2023-11-21 19:38:52,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:38:48" (2/3) ... [2023-11-21 19:38:52,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57107c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:38:52, skipping insertion in model container [2023-11-21 19:38:52,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:38:52" (3/3) ... [2023-11-21 19:38:52,086 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2023-11-21 19:38:52,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:38:52,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:38:52,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:38:52,189 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;@4b8b0fa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:38:52,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:38:52,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 19:38:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 19:38:52,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:38:52,206 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 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] [2023-11-21 19:38:52,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:38:52,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:38:52,217 INFO L85 PathProgramCache]: Analyzing trace with hash 607982211, now seen corresponding path program 1 times [2023-11-21 19:38:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:38:52,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039172416] [2023-11-21 19:38:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:38:52,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:38:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:39:10,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039172416] [2023-11-21 19:39:10,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039172416] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:39:10,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221361362] [2023-11-21 19:39:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:10,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:39:10,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:39:10,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:39:10,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f74f7e-1e3f-4421-b2e2-dbecb8f4009a/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:39:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:11,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 99 conjunts are in the unsatisfiable core [2023-11-21 19:39:11,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:39:12,420 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 19:39:12,428 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 15 treesize of output 1 [2023-11-21 19:39:21,914 INFO L349 Elim1Store]: treesize reduction 78, result has 71.0 percent of original size [2023-11-21 19:39:21,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 126 treesize of output 248 [2023-11-21 19:39:22,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:39:22,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 37 [2023-11-21 19:39:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 19:39:22,293 INFO L327 TraceCheckSpWp]: Computing backward predicates...