./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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:09:16,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:09:16,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:09:16,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:09:16,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:09:16,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:09:16,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:09:16,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:09:16,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:09:16,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:09:16,573 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:09:16,574 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:09:16,574 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:09:16,576 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:09:16,577 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:09:16,577 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:09:16,578 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:09:16,578 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:09:16,578 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:09:16,579 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:09:16,579 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:09:16,580 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:09:16,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:09:16,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:09:16,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:09:16,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:09:16,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:09:16,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:09:16,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:09:16,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:09:16,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:09:16,586 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:09:16,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:09:16,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:09:16,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:16,587 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:09:16,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:09:16,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:09:16,588 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:09:16,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:09:16,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:09:16,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:09:16,589 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:09:16,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:09:16,590 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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2023-11-25 00:09:16,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:09:16,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:09:16,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:09:16,898 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:09:16,899 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:09:16,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-25 00:09:20,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:09:20,747 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:09:20,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2023-11-25 00:09:20,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/data/bb4127b22/600cdb83172248dc8872e4ddc5dd443d/FLAGb4b3738be [2023-11-25 00:09:20,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/data/bb4127b22/600cdb83172248dc8872e4ddc5dd443d [2023-11-25 00:09:20,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:09:20,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:09:20,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:20,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:09:20,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:09:20,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:20" (1/1) ... [2023-11-25 00:09:20,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64133fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:20, skipping insertion in model container [2023-11-25 00:09:20,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:20" (1/1) ... [2023-11-25 00:09:20,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:09:21,376 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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-25 00:09:21,386 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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-25 00:09:22,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,604 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,605 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,610 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,612 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,631 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,636 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,642 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:22,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,292 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:09:23,294 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:09:23,295 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:09:23,297 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:09:23,303 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:09:23,304 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:09:23,305 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:09:23,306 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:09:23,308 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:09:23,310 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:09:23,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,659 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:23,890 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:09:23,934 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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2023-11-25 00:09:23,935 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_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2023-11-25 00:09:23,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,998 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:23,998 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,009 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,009 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,010 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,068 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-25 00:09:24,069 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-25 00:09:24,070 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-25 00:09:24,070 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-25 00:09:24,071 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-25 00:09:24,072 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-25 00:09:24,076 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-25 00:09:24,076 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-25 00:09:24,077 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-25 00:09:24,078 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-25 00:09:24,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-25 00:09:24,203 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,203 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-25 00:09:24,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-25 00:09:24,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:24,461 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,462 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,462 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,462 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,462 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,462 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,463 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,464 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:09:24,472 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:09:24,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24 WrapperNode [2023-11-25 00:09:24,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:24,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:24,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:09:24,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:09:24,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,724 INFO L138 Inliner]: procedures = 689, calls = 2640, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 874 [2023-11-25 00:09:24,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:24,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:09:24,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:09:24,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:09:24,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:09:24,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:09:24,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:09:24,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:09:24,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (1/1) ... [2023-11-25 00:09:24,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:24,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:09:24,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:09:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:09:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-25 00:09:24,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-25 00:09:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:09:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-25 00:09:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-25 00:09:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-25 00:09:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:09:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:09:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:09:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:09:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:09:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:09:24,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:09:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:09:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:09:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:09:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:09:24,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:09:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-25 00:09:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-25 00:09:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-25 00:09:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-25 00:09:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:09:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:09:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:09:24,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:09:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:09:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:09:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-25 00:09:24,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-25 00:09:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:09:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-25 00:09:24,959 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-25 00:09:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-25 00:09:24,959 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-25 00:09:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:09:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-25 00:09:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:09:25,339 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:09:25,342 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:09:26,810 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:09:27,100 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:09:27,100 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:09:27,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:27 BoogieIcfgContainer [2023-11-25 00:09:27,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:09:27,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:09:27,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:09:27,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:09:27,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:09:20" (1/3) ... [2023-11-25 00:09:27,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d0209d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:27, skipping insertion in model container [2023-11-25 00:09:27,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:24" (2/3) ... [2023-11-25 00:09:27,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d0209d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:27, skipping insertion in model container [2023-11-25 00:09:27,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:27" (3/3) ... [2023-11-25 00:09:27,111 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2023-11-25 00:09:27,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:09:27,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:09:27,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:09:27,190 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;@54e84433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:09:27,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:09:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-25 00:09:27,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-25 00:09:27,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:27,206 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:27,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:09:27,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:27,212 INFO L85 PathProgramCache]: Analyzing trace with hash 607982211, now seen corresponding path program 1 times [2023-11-25 00:09:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:27,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978254900] [2023-11-25 00:09:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:27,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:45,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-25 00:09:45,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:45,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978254900] [2023-11-25 00:09:45,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978254900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:09:45,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728119535] [2023-11-25 00:09:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:45,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:09:45,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:09:45,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:09:45,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bcb8832-f01a-4ce7-96b9-7a7852ebf1b9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:09:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:46,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-25 00:09:46,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:09:47,168 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 00:09:47,179 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 00:09:51,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:09:51,623 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 [2023-11-25 00:09:56,361 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 [2023-11-25 00:09:56,370 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 [2023-11-25 00:09:56,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:09:56,402 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 [2023-11-25 00:09:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-25 00:09:56,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:09:58,901 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 56951 disjunctions. This might take some time...