./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:13:29,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:13:30,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 14:13:30,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:13:30,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:13:30,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:13:30,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:13:30,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:13:30,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:13:30,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:13:30,071 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:13:30,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:13:30,072 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:13:30,072 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:13:30,073 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:13:30,073 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:13:30,074 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:13:30,074 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:13:30,075 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:13:30,075 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:13:30,076 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:13:30,077 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:13:30,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:13:30,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:13:30,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:13:30,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:13:30,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:13:30,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:13:30,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:13:30,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:13:30,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:13:30,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:13:30,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:13:30,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:13:30,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:13:30,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:13:30,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:13:30,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:13:30,082 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:13:30,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:13:30,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:13:30,083 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:13:30,083 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:13:30,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:13:30,083 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2023-12-02 14:13:30,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:13:30,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:13:30,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:13:30,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:13:30,349 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:13:30,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-12-02 14:13:33,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:13:33,490 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:13:33,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-12-02 14:13:33,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/data/b642a9b70/d972b6e8becc49f482c6fd0b1ad3d48e/FLAGd0df654ca [2023-12-02 14:13:33,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/data/b642a9b70/d972b6e8becc49f482c6fd0b1ad3d48e [2023-12-02 14:13:33,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:13:33,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:13:33,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:13:33,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:13:33,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:13:33,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:33" (1/1) ... [2023-12-02 14:13:33,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e70288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:33, skipping insertion in model container [2023-12-02 14:13:33,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:33" (1/1) ... [2023-12-02 14:13:33,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:13:33,970 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-12-02 14:13:33,979 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-12-02 14:13:34,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,831 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,832 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,833 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,848 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,849 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,851 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:34,851 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,228 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 14:13:35,229 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 14:13:35,230 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 14:13:35,231 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 14:13:35,233 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 14:13:35,233 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 14:13:35,234 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 14:13:35,235 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 14:13:35,236 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 14:13:35,237 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 14:13:35,479 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,479 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:13:35,590 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:13:35,603 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-12-02 14:13:35,604 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_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-12-02 14:13:35,679 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,679 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,681 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,686 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,687 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,688 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,688 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,720 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 14:13:35,721 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 14:13:35,722 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 14:13:35,722 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 14:13:35,723 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 14:13:35,723 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 14:13:35,723 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 14:13:35,724 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 14:13:35,724 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 14:13:35,725 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 14:13:35,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-12-02 14:13:35,792 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,792 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 14:13:35,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-12-02 14:13:35,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:13:36,072 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,072 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,072 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,073 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,074 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,075 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,075 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,075 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:13:36,083 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:13:36,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36 WrapperNode [2023-12-02 14:13:36,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:13:36,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:13:36,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:13:36,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:13:36,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,248 INFO L138 Inliner]: procedures = 689, calls = 2640, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 874 [2023-12-02 14:13:36,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:13:36,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:13:36,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:13:36,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:13:36,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:13:36,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:13:36,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:13:36,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:13:36,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (1/1) ... [2023-12-02 14:13:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:13:36,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:13:36,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:13:36,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:13:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-12-02 14:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 14:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:13:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 14:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 14:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:13:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 14:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 14:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:13:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-12-02 14:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 14:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 14:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:13:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-12-02 14:13:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:13:36,669 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:13:36,672 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:13:37,825 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:13:38,055 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:13:38,055 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:13:38,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:38 BoogieIcfgContainer [2023-12-02 14:13:38,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:13:38,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:13:38,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:13:38,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:13:38,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:13:33" (1/3) ... [2023-12-02 14:13:38,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbc3b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:38, skipping insertion in model container [2023-12-02 14:13:38,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:36" (2/3) ... [2023-12-02 14:13:38,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbc3b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:38, skipping insertion in model container [2023-12-02 14:13:38,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:38" (3/3) ... [2023-12-02 14:13:38,065 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2023-12-02 14:13:38,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:13:38,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:13:38,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:13:38,162 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;@39baf218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:13:38,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:13:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-02 14:13:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 14:13:38,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:13:38,180 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:13:38,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:13:38,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:13:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash 607982211, now seen corresponding path program 1 times [2023-12-02 14:13:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:13:38,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441263946] [2023-12-02 14:13:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:13:38,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:13:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:13:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 14:13:51,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:13:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441263946] [2023-12-02 14:13:51,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441263946] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:13:51,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277685727] [2023-12-02 14:13:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:13:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:13:51,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:13:51,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:13:51,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcfe771-f5c3-4635-9fdc-ded642ea7ffc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:13:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:13:52,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-02 14:13:52,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:13:52,541 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 [2023-12-02 14:13:52,550 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 [2023-12-02 14:13:55,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:13:55,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 20 [2023-12-02 14:13:59,262 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 108 treesize of output 96 [2023-12-02 14:13:59,269 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 96 treesize of output 84 [2023-12-02 14:13:59,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:13:59,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 121 treesize of output 97 [2023-12-02 14:13:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 14:13:59,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:14:01,197 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 56951 disjunctions. This might take some time... [2023-12-02 14:17:52,925 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 56951 disjunctions.