./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:13,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:13,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:09:13,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:13,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:13,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:13,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:13,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:13,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:13,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:13,754 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:13,755 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:13,756 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:13,757 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:13,757 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:13,758 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:13,759 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:13,760 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:13,760 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:13,761 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:13,762 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:13,763 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:13,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:13,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:13,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:13,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:13,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:13,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:13,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:13,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:13,771 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:13,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:13,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:13,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:13,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:13,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:13,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:13,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:13,777 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:13,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:13,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:13,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:13,780 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:13,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:13,781 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_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2023-11-23 21:09:14,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:14,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:14,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:14,243 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:14,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:14,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2023-11-23 21:09:17,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:18,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:18,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2023-11-23 21:09:18,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/data/138306014/0edbfad039d744ce8ec19c58099fd1b7/FLAGa91839a4e [2023-11-23 21:09:18,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/data/138306014/0edbfad039d744ce8ec19c58099fd1b7 [2023-11-23 21:09:18,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:18,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:18,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:18,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:18,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:18,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:18" (1/1) ... [2023-11-23 21:09:18,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6575547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:18, skipping insertion in model container [2023-11-23 21:09:18,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:18" (1/1) ... [2023-11-23 21:09:18,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:18,826 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_1debc97d-74fc-481c-a708-7b88bcfdd85a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2023-11-23 21:09:18,836 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_1debc97d-74fc-481c-a708-7b88bcfdd85a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2023-11-23 21:09:20,251 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,286 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,287 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,318 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,319 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:20,979 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:09:20,981 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:09:20,982 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:09:20,984 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:09:20,987 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:09:20,988 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:09:20,989 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:09:20,990 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:09:20,991 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:09:20,992 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:09:21,459 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,460 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:21,669 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:21,704 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_1debc97d-74fc-481c-a708-7b88bcfdd85a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2023-11-23 21:09:21,705 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_1debc97d-74fc-481c-a708-7b88bcfdd85a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2023-11-23 21:09:21,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,784 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,786 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,788 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,812 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,813 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:21,903 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:09:21,905 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:09:21,906 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:09:21,907 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:09:21,909 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:09:21,910 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:09:21,911 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:09:21,914 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:09:21,915 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:09:21,915 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:09:22,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-23 21:09:22,017 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:22,018 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:09:22,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-23 21:09:22,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:22,367 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,367 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,368 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,368 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,368 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,369 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,369 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,369 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,369 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,371 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,371 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,371 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,371 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,374 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,374 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,374 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,374 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,375 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:22,383 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:22,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22 WrapperNode [2023-11-23 21:09:22,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:22,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:22,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:22,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:22,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,701 INFO L138 Inliner]: procedures = 689, calls = 2634, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 985 [2023-11-23 21:09:22,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:22,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:22,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:22,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:22,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:22,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:22,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:22,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:22,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (1/1) ... [2023-11-23 21:09:22,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:22,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:22,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2023-11-23 21:09:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2023-11-23 21:09:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:09:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:09:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:09:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:09:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-23 21:09:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:09:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:09:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:09:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:09:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:09:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:09:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:09:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:09:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:09:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:09:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:09:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:09:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:09:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:09:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-23 21:09:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:23,290 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:23,293 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:25,243 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:25,924 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:25,925 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:09:25,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:25 BoogieIcfgContainer [2023-11-23 21:09:25,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:25,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:25,933 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:25,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:25,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:18" (1/3) ... [2023-11-23 21:09:25,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a0cbf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:25, skipping insertion in model container [2023-11-23 21:09:25,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:22" (2/3) ... [2023-11-23 21:09:25,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a0cbf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:25, skipping insertion in model container [2023-11-23 21:09:25,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:25" (3/3) ... [2023-11-23 21:09:25,945 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2023-11-23 21:09:25,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:25,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:26,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:26,074 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;@3413a12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:26,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:26,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 53 states have internal predecessors, (64), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 21:09:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 21:09:26,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:26,097 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] [2023-11-23 21:09:26,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:26,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1227064028, now seen corresponding path program 1 times [2023-11-23 21:09:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:26,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450328991] [2023-11-23 21:09:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:09:54,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:54,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450328991] [2023-11-23 21:09:54,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450328991] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:54,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065370208] [2023-11-23 21:09:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:54,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:54,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:54,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:54,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1debc97d-74fc-481c-a708-7b88bcfdd85a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:55,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 168 conjunts are in the unsatisfiable core [2023-11-23 21:09:55,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:55,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 21:09:55,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 21:09:56,115 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 21:09:56,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16