./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/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_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:12:56,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:56,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:12:56,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:56,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:56,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:56,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:56,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:56,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:56,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:56,293 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:56,294 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:56,295 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:56,296 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:56,297 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:56,297 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:56,298 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:56,298 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:56,299 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:56,299 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:56,301 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:56,302 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:56,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:56,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:56,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:56,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:56,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:56,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:56,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:56,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:56,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:56,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:56,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:56,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:56,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:56,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:56,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:56,318 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:56,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:56,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:56,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:56,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:56,320 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_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2023-11-12 00:12:56,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:56,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:56,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:56,671 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:56,671 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:56,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-12 00:12:59,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:00,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:00,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-12 00:13:00,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/data/abb4121a6/dbb00cab4470494cb2bb90c397ea6b83/FLAGc92a1305e [2023-11-12 00:13:00,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/data/abb4121a6/dbb00cab4470494cb2bb90c397ea6b83 [2023-11-12 00:13:00,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:00,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:00,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:00,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:00,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:00,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:00" (1/1) ... [2023-11-12 00:13:00,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752972c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:00, skipping insertion in model container [2023-11-12 00:13:00,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:00" (1/1) ... [2023-11-12 00:13:00,823 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:01,169 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_73377901-e73b-4ba9-9940-e82655aeafd2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-12 00:13:01,179 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_73377901-e73b-4ba9-9940-e82655aeafd2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-12 00:13:02,379 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,381 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,382 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,384 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,399 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,400 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,403 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,404 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:02,945 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:13:02,947 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:13:02,949 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:13:02,951 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:13:02,957 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:13:02,958 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:13:02,959 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:13:02,961 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:13:02,962 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:13:02,963 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:13:03,453 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,454 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:03,620 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:03,637 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_73377901-e73b-4ba9-9940-e82655aeafd2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-12 00:13:03,637 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_73377901-e73b-4ba9-9940-e82655aeafd2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-12 00:13:03,682 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,683 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,683 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,687 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,688 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,695 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,695 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,697 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,697 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,731 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:13:03,732 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:13:03,733 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:13:03,734 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:13:03,739 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:13:03,740 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:13:03,741 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:13:03,741 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:13:03,742 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:13:03,743 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:13:03,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-12 00:13:03,856 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,859 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:13:03,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-12 00:13:03,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:04,367 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,367 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,368 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,368 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,368 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,368 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,369 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,369 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,369 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,370 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,370 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,371 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,371 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,371 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,371 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,372 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,372 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,372 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:04,380 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:04,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04 WrapperNode [2023-11-12 00:13:04,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:04,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:04,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:04,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:04,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,631 INFO L138 Inliner]: procedures = 690, calls = 2622, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2023-11-12 00:13:04,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:04,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:04,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:04,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:04,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:04,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:04,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:04,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:04,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (1/1) ... [2023-11-12 00:13:04,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:04,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:04,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 00:13:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 00:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:13:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:13:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-12 00:13:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-12 00:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:13:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 00:13:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 00:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:13:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-12 00:13:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-12 00:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-12 00:13:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-12 00:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:13:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:05,189 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:05,191 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:06,869 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:13:07,481 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:13:07,481 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:13:07,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:07 BoogieIcfgContainer [2023-11-12 00:13:07,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:13:07,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:13:07,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:13:07,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:13:07,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:00" (1/3) ... [2023-11-12 00:13:07,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706dd4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:07, skipping insertion in model container [2023-11-12 00:13:07,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04" (2/3) ... [2023-11-12 00:13:07,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706dd4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:07, skipping insertion in model container [2023-11-12 00:13:07,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:07" (3/3) ... [2023-11-12 00:13:07,496 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2023-11-12 00:13:07,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:13:07,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:13:07,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:13:07,592 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;@58e02bb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:13:07,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:13:07,598 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) [2023-11-12 00:13:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 00:13:07,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:07,611 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] [2023-11-12 00:13:07,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:07,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1255648649, now seen corresponding path program 1 times [2023-11-12 00:13:07,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:07,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804480316] [2023-11-12 00:13:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:07,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:13:35,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804480316] [2023-11-12 00:13:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804480316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:35,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947048078] [2023-11-12 00:13:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:35,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:35,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:35,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:35,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73377901-e73b-4ba9-9940-e82655aeafd2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:13:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:36,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 136 conjunts are in the unsatisfiable core [2023-11-12 00:13:36,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:36,852 INFO L351 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 [2023-11-12 00:13:36,859 INFO L351 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