./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:16,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:16,797 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:53:16,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:16,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:16,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:16,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:16,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:16,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:16,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:16,858 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:16,859 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:16,860 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:16,861 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:53:16,862 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:16,862 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:16,863 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:53:16,863 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:53:16,863 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:16,864 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:53:16,864 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:53:16,865 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:53:16,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:16,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:53:16,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:53:16,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:16,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:53:16,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:16,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:53:16,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:53:16,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:16,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:16,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:16,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:16,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:16,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:16,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:16,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:53:16,873 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:53:16,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:53:16,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:16,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:53:16,874 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:16,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:16,875 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2023-11-24 23:53:17,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:17,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:17,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:17,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:17,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:17,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2023-11-24 23:53:20,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:20,939 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:20,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2023-11-24 23:53:20,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/data/abf256327/6621fca267f54a329bb2a3e044a9fae3/FLAG7018eb417 [2023-11-24 23:53:21,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/data/abf256327/6621fca267f54a329bb2a3e044a9fae3 [2023-11-24 23:53:21,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:21,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:21,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:21,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:21,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:21,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:21" (1/1) ... [2023-11-24 23:53:21,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6414592e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:21, skipping insertion in model container [2023-11-24 23:53:21,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:21" (1/1) ... [2023-11-24 23:53:21,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:21,477 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2023-11-24 23:53:21,485 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2023-11-24 23:53:22,706 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,707 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,710 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,736 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,739 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:22,740 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,206 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:53:23,208 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:53:23,209 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:53:23,211 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:53:23,213 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:53:23,214 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:53:23,215 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:53:23,215 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:53:23,216 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:53:23,224 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:53:23,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,598 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:23,741 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:23,756 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2023-11-24 23:53:23,757 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_eb4b6ec4-2f4c-482b-819c-af14845227c8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2023-11-24 23:53:23,799 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,799 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,800 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,800 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,801 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,807 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,808 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,809 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,843 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:53:23,844 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:53:23,845 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:53:23,846 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:53:23,847 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:53:23,848 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:53:23,848 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:53:23,849 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:53:23,849 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:53:23,850 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:53:23,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-24 23:53:23,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:23,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-24 23:53:24,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:24,273 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,274 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,274 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,274 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,274 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,274 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,275 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,276 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:24,284 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:24,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24 WrapperNode [2023-11-24 23:53:24,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:24,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:24,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:24,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:24,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,534 INFO L138 Inliner]: procedures = 690, calls = 2653, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 873 [2023-11-24 23:53:24,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:24,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:24,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:24,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:24,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:24,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:24,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:24,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:24,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (1/1) ... [2023-11-24 23:53:24,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:24,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:24,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:24,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-24 23:53:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-24 23:53:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:53:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:53:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:53:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:53:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:53:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-24 23:53:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-24 23:53:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:53:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:53:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:53:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-24 23:53:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-24 23:53:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:53:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:53:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:53:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-24 23:53:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-24 23:53:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:53:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:53:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:53:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:53:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-24 23:53:24,736 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-24 23:53:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:53:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:53:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:53:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:53:24,737 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-24 23:53:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-24 23:53:24,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:53:25,099 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:25,102 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:26,331 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:26,646 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:26,646 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:53:26,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:26 BoogieIcfgContainer [2023-11-24 23:53:26,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:26,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:26,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:26,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:26,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:53:21" (1/3) ... [2023-11-24 23:53:26,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bc306f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:26, skipping insertion in model container [2023-11-24 23:53:26,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:24" (2/3) ... [2023-11-24 23:53:26,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bc306f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:26, skipping insertion in model container [2023-11-24 23:53:26,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:26" (3/3) ... [2023-11-24 23:53:26,659 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2023-11-24 23:53:26,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:26,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:53:26,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:26,757 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;@23ab3d2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:26,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:53:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-24 23:53:26,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 23:53:26,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:26,775 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:26,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:26,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash -535598175, now seen corresponding path program 1 times [2023-11-24 23:53:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737212865] [2023-11-24 23:53:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:26,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-24 23:53:40,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:40,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737212865] [2023-11-24 23:53:40,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737212865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:53:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815486248] [2023-11-24 23:53:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:40,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:40,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:40,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4b6ec4-2f4c-482b-819c-af14845227c8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:53:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:41,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-24 23:53:41,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:41,629 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 10 treesize of output 8 [2023-11-24 23:53:41,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-24 23:53:41,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-24 23:53:42,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2023-11-24 23:53:42,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2023-11-24 23:53:42,885 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 8 treesize of output 7 [2023-11-24 23:53:42,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2023-11-24 23:53:42,906 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 8 treesize of output 7 [2023-11-24 23:53:48,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:53:48,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 80 treesize of output 136 [2023-11-24 23:53:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 23:53:49,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:53:50,219 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-11-24 23:54:00,817 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.