./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_string_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_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/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_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/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_92e93c26-81fa-426f-948d-c5e151536624/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 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:51,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:51,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:08:51,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:51,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:51,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:51,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:51,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:51,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:51,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:51,641 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:51,641 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:51,642 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:51,643 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:51,644 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:51,644 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:51,645 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:51,645 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:51,646 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:51,646 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:51,647 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:51,665 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:51,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:51,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:51,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:51,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:51,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:51,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:51,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:51,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:51,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:51,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:51,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:51,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:51,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:51,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:51,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:51,672 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:51,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:51,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:51,673 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:51,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:51,673 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_92e93c26-81fa-426f-948d-c5e151536624/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2023-11-12 00:08:51,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:52,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:52,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:52,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:52,008 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:52,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2023-11-12 00:08:55,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:55,813 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:55,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2023-11-12 00:08:55,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/data/679e79a9c/07dc2e1352d54e8ab1d97418aa1e113b/FLAG001a78367 [2023-11-12 00:08:55,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/data/679e79a9c/07dc2e1352d54e8ab1d97418aa1e113b [2023-11-12 00:08:55,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:55,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:55,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:55,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:55,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:55,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:55" (1/1) ... [2023-11-12 00:08:55,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcac4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:55, skipping insertion in model container [2023-11-12 00:08:55,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:55" (1/1) ... [2023-11-12 00:08:56,051 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:56,400 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_92e93c26-81fa-426f-948d-c5e151536624/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2023-11-12 00:08:56,414 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_92e93c26-81fa-426f-948d-c5e151536624/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2023-11-12 00:08:57,841 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,842 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,842 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,843 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,845 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,860 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,861 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,863 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,864 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,866 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,868 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:57,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:58,599 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:58,601 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:58,602 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:58,611 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:58,613 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:58,614 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:58,615 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:58,615 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:58,616 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:58,617 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:59,236 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,237 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,266 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,267 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,273 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,273 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,288 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,289 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,291 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,292 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,292 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:59,401 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:59,426 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_92e93c26-81fa-426f-948d-c5e151536624/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2023-11-12 00:08:59,427 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_92e93c26-81fa-426f-948d-c5e151536624/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2023-11-12 00:08:59,478 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,482 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,495 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,500 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,542 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:59,544 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:59,545 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:59,549 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:59,550 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:59,550 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:59,551 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:59,552 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:59,553 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:59,554 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:59,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-11-12 00:08:59,827 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,828 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,844 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,845 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,849 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,850 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,863 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,864 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,865 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,865 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,866 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:59,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:00,171 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,171 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,171 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,172 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,173 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,174 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,174 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,174 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,174 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:00,182 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:09:00,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00 WrapperNode [2023-11-12 00:09:00,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:00,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:00,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:09:00,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:09:00,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,382 INFO L138 Inliner]: procedures = 772, calls = 2484, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 533 [2023-11-12 00:09:00,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:00,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:09:00,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:09:00,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:09:00,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:09:00,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:09:00,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:09:00,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:09:00,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (1/1) ... [2023-11-12 00:09:00,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:00,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:00,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:09:00,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:09:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 00:09:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 00:09:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:09:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:09:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:09:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:09:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:09:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:09:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:09:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:09:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:09:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:09:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:09:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:09:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:09:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:09:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-12 00:09:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-12 00:09:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:09:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2023-11-12 00:09:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2023-11-12 00:09:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:09:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:09:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:09:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:09:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:09:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:09:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:09:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:09:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:09:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:09:01,009 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:09:01,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:09:02,976 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2023-11-12 00:09:02,986 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:09:05,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:09:05,125 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:09:05,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:05 BoogieIcfgContainer [2023-11-12 00:09:05,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:09:05,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:09:05,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:09:05,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:09:05,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:55" (1/3) ... [2023-11-12 00:09:05,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ecf14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:05, skipping insertion in model container [2023-11-12 00:09:05,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:00" (2/3) ... [2023-11-12 00:09:05,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ecf14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:05, skipping insertion in model container [2023-11-12 00:09:05,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:05" (3/3) ... [2023-11-12 00:09:05,142 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2023-11-12 00:09:05,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:09:05,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:09:05,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:05,259 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;@a126c21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:05,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:09:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 62 states have (on average 1.5) internal successors, (93), 62 states have internal predecessors, (93), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:09:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:09:05,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:05,287 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:09:05,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:05,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:05,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2051389873, now seen corresponding path program 1 times [2023-11-12 00:09:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:05,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016751261] [2023-11-12 00:09:05,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:05,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:09:10,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:10,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016751261] [2023-11-12 00:09:10,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016751261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:09:10,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216989157] [2023-11-12 00:09:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:10,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:10,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:09:10,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92e93c26-81fa-426f-948d-c5e151536624/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:09:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:11,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 115 conjunts are in the unsatisfiable core [2023-11-12 00:09:11,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:11,679 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 8 treesize of output 1 [2023-11-12 00:09:15,974 INFO L322 Elim1Store]: treesize reduction 168, result has 24.0 percent of original size [2023-11-12 00:09:15,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 129 treesize of output 145 [2023-11-12 00:09:24,907 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 249 DAG size of output: 90 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-12 00:09:24,908 INFO L322 Elim1Store]: treesize reduction 591, result has 21.4 percent of original size [2023-11-12 00:09:24,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 250 treesize of output 607