./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 30e01a73 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/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_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire --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 0.2.3-dev-30e01a7 [2023-11-23 20:33:54,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:54,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:33:54,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:54,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:54,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:54,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:54,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:54,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:54,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:54,636 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:54,637 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:54,637 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:54,638 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:54,639 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:54,640 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:54,640 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:54,641 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:54,642 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:54,643 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:54,643 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:54,644 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:54,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:54,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:54,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:54,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:54,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:54,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:54,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:54,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:54,650 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:54,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:54,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:54,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:54,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:54,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:54,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:54,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:54,655 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:54,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:54,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:54,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:54,657 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:54,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:54,658 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2023-11-23 20:33:54,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:54,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:54,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:54,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:54,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:54,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-23 20:33:58,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:59,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:59,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-23 20:33:59,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/data/18867de7a/a9d7b6e8e1444fa5bce36b6cf1eac8f7/FLAGc2126da78 [2023-11-23 20:33:59,448 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/data/18867de7a/a9d7b6e8e1444fa5bce36b6cf1eac8f7 [2023-11-23 20:33:59,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:59,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:59,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:59,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:59,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:59,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3546062c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59, skipping insertion in model container [2023-11-23 20:33:59,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:59,988 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-23 20:33:59,999 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-23 20:34:01,720 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,725 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,728 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,769 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,777 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:01,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:02,500 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:34:02,502 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:34:02,504 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:34:02,506 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:34:02,509 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:34:02,510 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:34:02,512 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:34:02,513 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:34:02,514 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:34:02,523 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:34:02,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:02,998 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:03,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:03,300 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-23 20:34:03,302 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_9237b36b-b819-4c7a-b034-4454e5c6dca3/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-23 20:34:03,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,389 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,390 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,391 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,414 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,419 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,421 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,521 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:34:03,523 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:34:03,524 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:34:03,526 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:34:03,528 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:34:03,529 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:34:03,529 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:34:03,530 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:34:03,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:34:03,532 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:34:03,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-23 20:34:03,681 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:34:03,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-23 20:34:03,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:04,156 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,157 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,157 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,158 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,158 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,159 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,160 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,160 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,160 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,162 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,162 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,162 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,163 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,164 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,164 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,164 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,165 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,165 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:04,174 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:04,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04 WrapperNode [2023-11-23 20:34:04,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:04,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:04,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:04,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:04,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,593 INFO L138 Inliner]: procedures = 690, calls = 2622, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2023-11-23 20:34:04,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:04,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:04,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:04,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:04,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:04,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:04,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:04,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:04,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:04,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:04,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:04,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 20:34:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 20:34:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 20:34:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 20:34:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:34:04,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:34:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 20:34:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 20:34:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 20:34:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 20:34:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 20:34:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 20:34:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 20:34:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 20:34:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-23 20:34:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-23 20:34:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 20:34:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 20:34:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:05,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:05,176 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:06,492 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:07,007 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:07,007 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:07,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:07 BoogieIcfgContainer [2023-11-23 20:34:07,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:07,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:07,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:07,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:07,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:59" (1/3) ... [2023-11-23 20:34:07,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd46680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:07, skipping insertion in model container [2023-11-23 20:34:07,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04" (2/3) ... [2023-11-23 20:34:07,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd46680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:07, skipping insertion in model container [2023-11-23 20:34:07,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:07" (3/3) ... [2023-11-23 20:34:07,025 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2023-11-23 20:34:07,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:07,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:07,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:07,144 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;@6e82744b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:07,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:07,150 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) [2023-11-23 20:34:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 20:34:07,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:07,163 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] [2023-11-23 20:34:07,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:07,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1629641900, now seen corresponding path program 1 times [2023-11-23 20:34:07,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:07,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897642863] [2023-11-23 20:34:07,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:07,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 20:34:33,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:33,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897642863] [2023-11-23 20:34:33,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897642863] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685853525] [2023-11-23 20:34:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:33,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:33,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:33,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9237b36b-b819-4c7a-b034-4454e5c6dca3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:34:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:34,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 144 conjunts are in the unsatisfiable core [2023-11-23 20:34:34,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:34,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-23 20:34:35,430 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 [2023-11-23 20:34:35,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 20:34:35,742 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 20:34:35,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-23 20:34:35,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2023-11-23 20:34:35,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 20:34:35,929 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 [2023-11-23 20:34:36,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2023-11-23 20:34:36,762 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 20:34:36,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-23 20:34:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:34:36,809 INFO L349 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2023-11-23 20:34:36,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 1 [2023-11-23 20:34:37,085 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-23 20:34:37,085 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 18 treesize of output 17 [2023-11-23 20:34:37,113 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-23 20:34:37,114 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 16 treesize of output 15 [2023-11-23 20:34:37,147 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 20:34:37,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11