./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 527bcce2 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5 --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 0.2.3-dev-527bcce [2023-11-21 19:51:07,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:51:07,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:51:07,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:51:07,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:51:07,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:51:07,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:51:07,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:51:07,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:51:07,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:51:07,968 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:51:07,970 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:51:07,970 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:51:07,972 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:51:07,972 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:51:07,973 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:51:07,973 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:51:07,974 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:51:07,974 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:51:07,975 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:51:07,975 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:51:07,976 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:51:07,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:51:07,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:51:07,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:51:07,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:51:07,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:51:07,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:51:07,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:51:07,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:51:07,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:51:07,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:51:07,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:51:07,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:51:07,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:51:07,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:51:07,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:51:07,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:51:07,983 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:51:07,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:51:07,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:51:07,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:51:07,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:51:07,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:51:07,985 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2023-11-21 19:51:08,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:51:08,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:51:08,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:51:08,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:51:08,323 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:51:08,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2023-11-21 19:51:11,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:51:12,136 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:51:12,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2023-11-21 19:51:12,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/data/f7a3ab147/06a1db4c5bcf4c6aa49e0d4d890765f4/FLAGbfa0cf40a [2023-11-21 19:51:12,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/data/f7a3ab147/06a1db4c5bcf4c6aa49e0d4d890765f4 [2023-11-21 19:51:12,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:51:12,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:51:12,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:51:12,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:51:12,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:51:12,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:51:12" (1/1) ... [2023-11-21 19:51:12,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556f332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:12, skipping insertion in model container [2023-11-21 19:51:12,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:51:12" (1/1) ... [2023-11-21 19:51:12,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:51:12,669 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2023-11-21 19:51:12,678 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2023-11-21 19:51:14,012 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,017 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,019 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,021 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,077 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,077 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,080 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,080 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:14,653 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:51:14,655 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:51:14,656 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:51:14,658 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:51:14,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:51:14,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:51:14,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:51:14,663 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:51:14,664 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:51:14,664 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:51:15,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,012 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:51:15,146 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:51:15,161 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2023-11-21 19:51:15,162 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_19316d7c-2f82-4830-8b6c-1260b8b3fd48/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2023-11-21 19:51:15,204 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,204 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,205 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,206 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,207 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,216 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,217 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,309 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 19:51:15,311 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 19:51:15,312 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 19:51:15,313 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 19:51:15,314 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 19:51:15,315 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 19:51:15,316 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 19:51:15,317 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 19:51:15,317 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 19:51:15,321 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 19:51:15,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-21 19:51:15,478 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,479 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 19:51:15,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-21 19:51:15,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:51:15,888 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,888 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,889 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,889 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,889 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,889 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,889 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,890 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,891 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,891 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,891 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,891 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,891 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:51:15,901 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:51:15,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15 WrapperNode [2023-11-21 19:51:15,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:51:15,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:51:15,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:51:15,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:51:15,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,179 INFO L138 Inliner]: procedures = 690, calls = 2653, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 873 [2023-11-21 19:51:16,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:51:16,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:51:16,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:51:16,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:51:16,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:51:16,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:51:16,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:51:16,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:51:16,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (1/1) ... [2023-11-21 19:51:16,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:51:16,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:51:16,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:51:16,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:51:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-21 19:51:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-21 19:51:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:51:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:51:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 19:51:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 19:51:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:51:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2023-11-21 19:51:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2023-11-21 19:51:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:51:16,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:51:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:51:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:51:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-21 19:51:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-21 19:51:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:51:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:51:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:51:16,421 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 19:51:16,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 19:51:16,421 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 19:51:16,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 19:51:16,422 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:51:16,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:51:16,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:51:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:51:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-21 19:51:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-21 19:51:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:51:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 19:51:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 19:51:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:51:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-21 19:51:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2023-11-21 19:51:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:51:16,744 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:51:16,747 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:51:18,241 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:51:18,598 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:51:18,599 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:51:18,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:51:18 BoogieIcfgContainer [2023-11-21 19:51:18,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:51:18,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:51:18,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:51:18,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:51:18,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:51:12" (1/3) ... [2023-11-21 19:51:18,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668695bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:51:18, skipping insertion in model container [2023-11-21 19:51:18,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:51:15" (2/3) ... [2023-11-21 19:51:18,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668695bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:51:18, skipping insertion in model container [2023-11-21 19:51:18,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:51:18" (3/3) ... [2023-11-21 19:51:18,615 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2023-11-21 19:51:18,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:51:18,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:51:18,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:51:18,718 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;@10eb6d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:51:18,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:51:18,724 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) [2023-11-21 19:51:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-21 19:51:18,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:51:18,738 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] [2023-11-21 19:51:18,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:51:18,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:51:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -535598175, now seen corresponding path program 1 times [2023-11-21 19:51:18,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:51:18,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133438483] [2023-11-21 19:51:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:51:18,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:51:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:51:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-21 19:51:32,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:51:32,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133438483] [2023-11-21 19:51:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133438483] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:51:32,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447525603] [2023-11-21 19:51:32,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:51:32,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:51:32,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:51:32,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:51:32,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19316d7c-2f82-4830-8b6c-1260b8b3fd48/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:51:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:51:33,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 146 conjunts are in the unsatisfiable core [2023-11-21 19:51:33,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:51:33,146 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 [2023-11-21 19:51:33,432 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 [2023-11-21 19:51:33,438 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 [2023-11-21 19:51:36,645 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2023-11-21 19:51:36,678 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2023-11-21 19:51:36,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 33 [2023-11-21 19:51:36,684 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 [2023-11-21 19:51:36,711 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-21 19:51:36,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 25 [2023-11-21 19:51:36,763 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 32 treesize of output 20 [2023-11-21 19:51:36,969 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 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-21 19:51:36,978 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 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-21 19:51:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-21 19:51:44,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:51:45,229 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-21 19:51:55,602 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.