./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.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_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/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_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/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_9902189f-0ba9-407b-9203-16bfa6051070/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 e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:52,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:52,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:31:52,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:52,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:52,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:52,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:52,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:52,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:52,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:52,151 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:52,151 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:52,152 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:52,152 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:52,153 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:52,153 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:52,154 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:52,154 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:52,155 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:52,155 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:52,156 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:52,156 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:52,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:52,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:52,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:52,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:52,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:52,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:52,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:52,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:52,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:52,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:52,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:52,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:52,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:52,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:52,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:52,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:52,163 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:52,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:52,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:52,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:52,163 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:52,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:52,164 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_9902189f-0ba9-407b-9203-16bfa6051070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 [2023-11-23 21:31:52,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:52,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:52,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:52,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:52,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:52,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-23 21:31:55,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:56,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:56,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-23 21:31:56,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/data/7991ba928/088bf8a6aded45e6a5b0ea8e190374ca/FLAG4fe862233 [2023-11-23 21:31:56,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/data/7991ba928/088bf8a6aded45e6a5b0ea8e190374ca [2023-11-23 21:31:56,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:56,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:56,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:56,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:56,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:56,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:56" (1/1) ... [2023-11-23 21:31:56,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754761c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:56, skipping insertion in model container [2023-11-23 21:31:56,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:56" (1/1) ... [2023-11-23 21:31:56,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:57,361 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_9902189f-0ba9-407b-9203-16bfa6051070/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2023-11-23 21:31:57,373 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_9902189f-0ba9-407b-9203-16bfa6051070/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2023-11-23 21:31:59,239 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,240 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,241 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,244 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,275 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,278 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:31:59,279 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:32:00,045 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:32:00,047 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:32:00,050 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:32:00,052 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:32:00,088 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:32:00,090 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:32:00,091 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:32:00,092 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:32:00,093 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:32:00,570 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:00,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:00,793 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_9902189f-0ba9-407b-9203-16bfa6051070/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2023-11-23 21:32:00,794 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_9902189f-0ba9-407b-9203-16bfa6051070/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2023-11-23 21:32:00,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,861 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,861 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,863 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,864 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,873 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,873 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:00,943 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:32:00,944 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:32:00,945 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:32:00,947 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:32:00,948 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:32:00,949 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:32:00,949 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:32:00,954 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:32:00,955 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:32:00,956 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:32:01,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2023-11-23 21:32:01,094 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:01,095 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:32:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2023-11-23 21:32:01,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:01,469 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,469 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,470 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,470 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,471 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,472 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,472 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,472 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,472 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,474 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,474 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,474 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,475 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,476 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,476 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,476 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,476 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,476 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:01,486 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:01,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01 WrapperNode [2023-11-23 21:32:01,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:01,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:01,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:01,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:01,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,778 INFO L138 Inliner]: procedures = 690, calls = 2656, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 836 [2023-11-23 21:32:01,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:01,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:01,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:01,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:01,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:01,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:01,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:01,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:01,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (1/1) ... [2023-11-23 21:32:01,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:01,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:01,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:32:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:32:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:32:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:32:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:32:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:32:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-23 21:32:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-23 21:32:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:32:02,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:32:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:32:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 21:32:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 21:32:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:32:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:32:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:32:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:32:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:32:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:32:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:32:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:32:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:32:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-23 21:32:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-23 21:32:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2023-11-23 21:32:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2023-11-23 21:32:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:02,406 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:02,409 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:04,031 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:04,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:04,356 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:04,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:04 BoogieIcfgContainer [2023-11-23 21:32:04,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:04,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:04,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:04,370 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:04,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:56" (1/3) ... [2023-11-23 21:32:04,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bebf74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:04, skipping insertion in model container [2023-11-23 21:32:04,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:01" (2/3) ... [2023-11-23 21:32:04,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76bebf74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:04, skipping insertion in model container [2023-11-23 21:32:04,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:04" (3/3) ... [2023-11-23 21:32:04,376 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness_negated.i [2023-11-23 21:32:04,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:04,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:04,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:04,486 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;@37de5a44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:04,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-23 21:32:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:32:04,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:04,511 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-11-23 21:32:04,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:04,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1377131898, now seen corresponding path program 1 times [2023-11-23 21:32:04,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:04,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357597445] [2023-11-23 21:32:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:04,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 21:32:20,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357597445] [2023-11-23 21:32:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357597445] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677137758] [2023-11-23 21:32:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:20,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:20,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:20,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:20,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9902189f-0ba9-407b-9203-16bfa6051070/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:32:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:20,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 2638 conjuncts, 85 conjunts are in the unsatisfiable core [2023-11-23 21:32:20,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:21,739 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 [2023-11-23 21:32:21,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 13 [2023-11-23 21:32:22,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 21:32:22,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 21:32:22,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 21:32:25,836 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-23 21:32:25,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-11-23 21:32:25,853 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-23 21:32:25,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-11-23 21:32:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 21:32:26,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:32:28,058 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-23 21:32:38,494 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.