./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:58,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:58,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:01:58,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:58,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:58,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:58,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:58,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:58,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:58,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:58,268 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:58,269 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:58,269 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:58,270 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:58,270 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:58,271 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:58,272 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:58,272 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:58,273 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:58,273 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:58,274 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:58,275 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:58,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:58,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:58,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:58,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:58,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:58,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:58,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:58,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:58,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:58,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:58,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:58,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:58,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:58,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:58,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:58,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:58,282 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:58,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:58,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:58,283 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:58,283 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:58,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:58,284 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2023-11-25 00:01:58,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:58,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:58,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:58,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:58,580 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:58,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-25 00:02:01,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:02,598 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:02,599 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-25 00:02:02,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/data/96c998c4b/2dfe44dbd3da478da9eabf71e14e8430/FLAGd2c0545b6 [2023-11-25 00:02:02,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/data/96c998c4b/2dfe44dbd3da478da9eabf71e14e8430 [2023-11-25 00:02:02,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:02,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:02,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:02,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:02,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:02,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:02" (1/1) ... [2023-11-25 00:02:02,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1113a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:02, skipping insertion in model container [2023-11-25 00:02:02,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:02" (1/1) ... [2023-11-25 00:02:02,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:03,202 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-25 00:02:03,213 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-25 00:02:04,656 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,659 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,662 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,686 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:04,688 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:05,337 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:02:05,339 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:02:05,340 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:02:05,342 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:02:05,344 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:02:05,346 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:02:05,346 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:02:05,347 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:02:05,348 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:02:05,349 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:02:05,912 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:05,920 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:06,062 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:06,087 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-25 00:02:06,088 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_faa1bed3-aafd-467f-af1c-2a74c3d15b91/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-25 00:02:06,136 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,139 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,153 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,154 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,156 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,156 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,213 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:02:06,214 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:02:06,215 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:02:06,216 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:02:06,220 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:02:06,221 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:02:06,222 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:02:06,223 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:02:06,223 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:02:06,224 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:02:06,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-25 00:02:06,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:02:06,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-25 00:02:06,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:06,642 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,642 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,642 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,642 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,643 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,644 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,644 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,644 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,644 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,644 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,645 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,645 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,645 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:02:06,653 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:06,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06 WrapperNode [2023-11-25 00:02:06,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:06,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:06,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:06,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:06,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:06,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:06,908 INFO L138 Inliner]: procedures = 690, calls = 2622, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2023-11-25 00:02:06,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:06,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:06,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:06,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:06,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:06,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:06,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:06,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:07,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:07,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:07,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:07,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (1/1) ... [2023-11-25 00:02:07,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:07,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:07,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:07,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-25 00:02:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-25 00:02:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:02:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-25 00:02:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-25 00:02:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:02:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:02:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:02:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:02:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:02:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-25 00:02:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-25 00:02:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-25 00:02:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-25 00:02:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-25 00:02:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-25 00:02:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:02:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:02:07,223 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-25 00:02:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-25 00:02:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:02:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:02:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-25 00:02:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-25 00:02:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:02:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-25 00:02:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-25 00:02:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:02:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:07,580 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:07,583 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:08,957 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:09,464 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:09,464 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:02:09,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:09 BoogieIcfgContainer [2023-11-25 00:02:09,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:09,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:09,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:09,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:09,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:02" (1/3) ... [2023-11-25 00:02:09,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d38eb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:09, skipping insertion in model container [2023-11-25 00:02:09,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:06" (2/3) ... [2023-11-25 00:02:09,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d38eb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:09, skipping insertion in model container [2023-11-25 00:02:09,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:09" (3/3) ... [2023-11-25 00:02:09,479 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2023-11-25 00:02:09,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:09,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:02:09,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:09,581 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;@2795e942, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:09,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:02:09,586 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 00:02:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-25 00:02:09,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:09,600 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 00:02:09,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:09,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1629641900, now seen corresponding path program 1 times [2023-11-25 00:02:09,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:09,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456961490] [2023-11-25 00:02:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:09,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-25 00:02:33,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:33,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456961490] [2023-11-25 00:02:33,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456961490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:02:33,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163414909] [2023-11-25 00:02:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:33,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:33,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa1bed3-aafd-467f-af1c-2a74c3d15b91/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:02:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:34,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-25 00:02:34,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:35,195 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 00:02:35,201 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 [2023-11-25 00:02:36,177 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-25 00:02:36,178 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 25 treesize of output 17 [2023-11-25 00:02:36,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12