./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91 --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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:09:26,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:09:26,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:09:26,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:09:26,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:09:26,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:09:26,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:09:26,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:09:26,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:09:26,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:09:26,284 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:09:26,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:09:26,285 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:09:26,287 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:09:26,287 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:09:26,288 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:09:26,288 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:09:26,289 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:09:26,289 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:09:26,289 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:09:26,290 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:09:26,291 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:09:26,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:09:26,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:09:26,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:09:26,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:09:26,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:09:26,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:09:26,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:09:26,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:09:26,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:09:26,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:09:26,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:09:26,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:09:26,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:26,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:09:26,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:09:26,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:09:26,298 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:09:26,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:09:26,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:09:26,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:09:26,299 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:09:26,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:09:26,300 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_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2023-11-25 00:09:26,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:09:26,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:09:26,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:09:26,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:09:26,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:09:26,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2023-11-25 00:09:29,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:09:30,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:09:30,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2023-11-25 00:09:30,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/data/44779459c/fc98bb92714542618a9ac21ced7f3602/FLAG1b91df79e [2023-11-25 00:09:30,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/data/44779459c/fc98bb92714542618a9ac21ced7f3602 [2023-11-25 00:09:30,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:09:30,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:09:30,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:30,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:09:30,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:09:30,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:30" (1/1) ... [2023-11-25 00:09:30,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4475275d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:30, skipping insertion in model container [2023-11-25 00:09:30,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:30" (1/1) ... [2023-11-25 00:09:30,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:09:30,892 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_df74b49e-8c3d-4862-b561-59f44126f019/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2023-11-25 00:09:30,905 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_df74b49e-8c3d-4862-b561-59f44126f019/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2023-11-25 00:09:32,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,147 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,150 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,154 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,155 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:32,726 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:09:32,727 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:09:32,729 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:09:32,732 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:09:32,738 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:09:32,739 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:09:32,740 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:09:32,741 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:09:32,743 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:09:32,745 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:09:33,048 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,049 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:33,231 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:09:33,256 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_df74b49e-8c3d-4862-b561-59f44126f019/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2023-11-25 00:09:33,257 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_df74b49e-8c3d-4862-b561-59f44126f019/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2023-11-25 00:09:33,311 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,318 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,339 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,407 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:09:33,408 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:09:33,409 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:09:33,410 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:09:33,411 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:09:33,412 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:09:33,413 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:09:33,413 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:09:33,414 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:09:33,415 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:09:33,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-25 00:09:33,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,601 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:33,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-25 00:09:33,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:33,933 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,933 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,934 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,934 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,935 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,935 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,935 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,935 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,935 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,936 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,937 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,937 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,937 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,939 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,939 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,939 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,939 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,940 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:33,947 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:09:33,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33 WrapperNode [2023-11-25 00:09:33,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:33,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:33,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:09:33,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:09:33,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,191 INFO L138 Inliner]: procedures = 690, calls = 2622, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 865 [2023-11-25 00:09:34,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:34,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:09:34,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:09:34,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:09:34,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:09:34,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:09:34,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:09:34,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:09:34,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (1/1) ... [2023-11-25 00:09:34,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:34,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:09:34,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:09:34,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:09:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2023-11-25 00:09:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-25 00:09:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-25 00:09:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:09:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-25 00:09:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-25 00:09:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:09:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:09:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:09:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:09:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:09:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:09:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-25 00:09:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-25 00:09:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:09:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:09:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-25 00:09:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-25 00:09:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-25 00:09:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-25 00:09:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:09:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:09:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-25 00:09:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-25 00:09:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:09:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:09:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-25 00:09:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-25 00:09:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:09:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-25 00:09:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-25 00:09:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:09:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:09:34,787 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:09:34,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:09:36,378 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:09:36,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:09:36,816 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:09:36,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:36 BoogieIcfgContainer [2023-11-25 00:09:36,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:09:36,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:09:36,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:09:36,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:09:36,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:09:30" (1/3) ... [2023-11-25 00:09:36,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c874f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:36, skipping insertion in model container [2023-11-25 00:09:36,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:33" (2/3) ... [2023-11-25 00:09:36,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c874f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:36, skipping insertion in model container [2023-11-25 00:09:36,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:36" (3/3) ... [2023-11-25 00:09:36,830 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2023-11-25 00:09:36,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:09:36,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:09:36,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:09:36,923 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;@59a39f1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:09:36,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:09:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-25 00:09:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-25 00:09:36,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:36,942 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 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] [2023-11-25 00:09:36,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:09:36,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:36,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1126405962, now seen corresponding path program 1 times [2023-11-25 00:09:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:36,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141764884] [2023-11-25 00:09:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:36,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-25 00:10:04,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:10:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141764884] [2023-11-25 00:10:04,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141764884] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:10:04,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137732873] [2023-11-25 00:10:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:04,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:10:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:10:04,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:10:04,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df74b49e-8c3d-4862-b561-59f44126f019/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:10:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:05,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 151 conjunts are in the unsatisfiable core [2023-11-25 00:10:05,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:10:05,597 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 [2023-11-25 00:10:05,609 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