./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_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_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh --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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:06:07,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:06:07,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:06:07,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:06:07,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:06:07,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:06:07,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:06:07,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:06:07,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:06:07,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:06:07,160 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:06:07,160 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:06:07,161 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:06:07,161 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:06:07,162 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:06:07,162 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:06:07,163 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:06:07,163 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:06:07,164 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:06:07,164 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:06:07,165 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:06:07,165 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:06:07,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:06:07,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:06:07,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:06:07,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:06:07,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:06:07,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:06:07,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:06:07,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:06:07,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:06:07,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:06:07,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:06:07,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:06:07,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:06:07,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:06:07,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:06:07,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:06:07,171 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:06:07,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:06:07,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:06:07,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:06:07,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:06:07,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:06:07,172 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_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2023-12-02 19:06:07,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:06:07,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:06:07,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:06:07,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:06:07,416 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:06:07,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2023-12-02 19:06:10,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:06:10,604 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:06:10,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2023-12-02 19:06:10,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/data/37b832dd2/4af0137747a342e687d1c874e39e26b7/FLAG0b62fbca5 [2023-12-02 19:06:10,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/data/37b832dd2/4af0137747a342e687d1c874e39e26b7 [2023-12-02 19:06:10,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:06:10,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:06:10,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:06:10,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:06:10,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:06:10,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:06:10" (1/1) ... [2023-12-02 19:06:10,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414f0f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:10, skipping insertion in model container [2023-12-02 19:06:10,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:06:10" (1/1) ... [2023-12-02 19:06:10,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:06:11,087 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_db434e96-2b9c-40e6-a702-68aff52a1aae/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2023-12-02 19:06:11,097 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_db434e96-2b9c-40e6-a702-68aff52a1aae/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2023-12-02 19:06:12,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,165 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,575 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:06:12,576 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:06:12,577 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:06:12,578 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:06:12,580 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:06:12,581 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:06:12,581 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:06:12,582 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:06:12,583 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:06:12,583 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:06:12,832 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,832 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:12,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:06:12,947 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:06:12,962 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_db434e96-2b9c-40e6-a702-68aff52a1aae/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2023-12-02 19:06:12,963 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_db434e96-2b9c-40e6-a702-68aff52a1aae/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2023-12-02 19:06:13,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,008 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,009 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,010 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,010 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,071 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:06:13,072 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:06:13,072 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:06:13,073 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:06:13,074 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:06:13,074 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:06:13,075 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:06:13,075 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:06:13,075 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:06:13,076 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:06:13,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-12-02 19:06:13,151 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,152 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:06:13,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-12-02 19:06:13,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:06:13,414 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,414 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,414 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,415 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,416 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,416 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,416 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,416 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,416 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,417 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,417 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,417 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,417 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:06:13,424 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:06:13,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13 WrapperNode [2023-12-02 19:06:13,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:06:13,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:06:13,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:06:13,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:06:13,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,615 INFO L138 Inliner]: procedures = 690, calls = 2652, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 828 [2023-12-02 19:06:13,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:06:13,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:06:13,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:06:13,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:06:13,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:06:13,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:06:13,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:06:13,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:06:13,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (1/1) ... [2023-12-02 19:06:13,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:06:13,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:06:13,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:06:13,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:06:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-12-02 19:06:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-12-02 19:06:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:06:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 19:06:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 19:06:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:06:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-12-02 19:06:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-12-02 19:06:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 19:06:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 19:06:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:06:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:06:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-12-02 19:06:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-12-02 19:06:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:06:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:06:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:06:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 19:06:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 19:06:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 19:06:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 19:06:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:06:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:06:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:06:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:06:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:06:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:06:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-12-02 19:06:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-12-02 19:06:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2023-12-02 19:06:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2023-12-02 19:06:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:06:14,049 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:06:14,051 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:06:15,134 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:06:15,309 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:06:15,309 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:06:15,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:06:15 BoogieIcfgContainer [2023-12-02 19:06:15,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:06:15,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:06:15,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:06:15,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:06:15,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:06:10" (1/3) ... [2023-12-02 19:06:15,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b9ea6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:06:15, skipping insertion in model container [2023-12-02 19:06:15,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:13" (2/3) ... [2023-12-02 19:06:15,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b9ea6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:06:15, skipping insertion in model container [2023-12-02 19:06:15,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:06:15" (3/3) ... [2023-12-02 19:06:15,319 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2023-12-02 19:06:15,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:06:15,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:06:15,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:06:15,386 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;@25218804, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:06:15,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:06:15,390 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) [2023-12-02 19:06:15,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 19:06:15,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:06:15,401 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] [2023-12-02 19:06:15,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:06:15,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:06:15,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1247321829, now seen corresponding path program 1 times [2023-12-02 19:06:15,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:06:15,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336631022] [2023-12-02 19:06:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:06:15,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:06:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-02 19:06:24,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:06:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336631022] [2023-12-02 19:06:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336631022] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:06:24,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470470963] [2023-12-02 19:06:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:06:24,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:06:24,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:06:24,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:06:24,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db434e96-2b9c-40e6-a702-68aff52a1aae/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:06:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:24,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 93 conjunts are in the unsatisfiable core [2023-12-02 19:06:24,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:06:24,994 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 [2023-12-02 19:06:24,999 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 [2023-12-02 19:06:25,595 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 11 treesize of output 7 [2023-12-02 19:06:25,600 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 11 treesize of output 7 [2023-12-02 19:06:25,610 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 8 treesize of output 1 [2023-12-02 19:06:27,388 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:06:27,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-02 19:06:27,396 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:06:27,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-02 19:06:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:06:27,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:06:29,046 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-12-02 19:06:36,774 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.