./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 5e519f3a 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/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_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:03:32,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:03:32,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:03:32,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:03:32,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:03:32,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:03:32,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:03:32,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:03:32,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:03:32,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:03:32,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:03:32,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:03:32,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:03:32,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:03:32,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:03:32,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:03:32,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:03:32,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:03:32,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:03:32,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:03:32,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:03:32,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:03:32,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:03:32,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:03:32,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:03:32,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:03:32,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:03:32,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:03:32,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:03:32,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:03:32,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:03:32,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:03:32,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:03:32,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:03:32,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:03:32,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:03:32,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:03:32,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:03:32,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:03:32,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:03:32,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:03:32,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:03:32,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:03:32,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:03:32,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:03:32,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:03:32,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:03:32,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:03:32,358 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:03:32,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:03:32,359 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:03:32,359 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:03:32,360 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:03:32,361 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:03:32,361 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:03:32,361 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:03:32,361 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:03:32,362 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:03:32,362 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:03:32,362 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:03:32,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:03:32,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:03:32,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:03:32,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:03:32,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:03:32,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:03:32,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:03:32,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:03:32,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:03:32,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:03:32,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:03:32,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:32,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:03:32,368 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:03:32,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:03:32,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:03:32,370 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:03:32,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:03:32,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:03:32,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:03:32,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2022-11-03 02:03:32,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:03:32,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:03:32,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:03:32,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:03:32,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:03:32,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2022-11-03 02:03:32,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/data/60b680d21/6edf87e17ddf4b80a884d00ac5f63adf/FLAGc53b49332 [2022-11-03 02:03:33,636 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:03:33,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2022-11-03 02:03:33,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/data/60b680d21/6edf87e17ddf4b80a884d00ac5f63adf/FLAGc53b49332 [2022-11-03 02:03:34,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/data/60b680d21/6edf87e17ddf4b80a884d00ac5f63adf [2022-11-03 02:03:34,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:03:34,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:03:34,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:34,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:03:34,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:03:34,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:34" (1/1) ... [2022-11-03 02:03:34,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36527b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:34, skipping insertion in model container [2022-11-03 02:03:34,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:34" (1/1) ... [2022-11-03 02:03:34,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:03:34,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:03:34,656 WARN L230 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2022-11-03 02:03:34,664 WARN L230 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2022-11-03 02:03:35,798 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,799 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,799 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,800 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,801 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,817 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,818 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,820 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:35,822 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,268 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:03:36,269 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:03:36,271 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:03:36,272 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:03:36,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:03:36,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:03:36,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:03:36,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:03:36,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:03:36,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:03:36,479 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:03:36,678 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,679 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:36,860 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:03:36,875 WARN L230 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2022-11-03 02:03:36,875 WARN L230 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_711d7673-74d4-4cda-9aeb-4a131576e7cb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2022-11-03 02:03:36,911 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,912 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,912 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,913 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,914 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,921 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,922 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,923 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,923 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:36,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:03:37,008 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:03:37,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:03:37,010 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:03:37,012 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:03:37,012 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:03:37,013 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:03:37,013 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:03:37,014 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:03:37,015 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:03:37,040 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:03:37,109 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:37,110 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:03:37,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:37,365 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:03:37,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37 WrapperNode [2022-11-03 02:03:37,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:37,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:37,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:03:37,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:03:37,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,637 INFO L138 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 873 [2022-11-03 02:03:37,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:37,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:03:37,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:03:37,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:03:37,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:03:37,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:03:37,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:03:37,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:03:37,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (1/1) ... [2022-11-03 02:03:37,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:37,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:03:37,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:03:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-03 02:03:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-03 02:03:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:03:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:03:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:03:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:03:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:03:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-11-03 02:03:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-11-03 02:03:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:03:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:03:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:03:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:03:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-03 02:03:37,908 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-03 02:03:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:03:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:03:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:03:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:03:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:03:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 02:03:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 02:03:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:03:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:03:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:03:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:03:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-03 02:03:37,912 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-03 02:03:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:03:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 02:03:37,913 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 02:03:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:03:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-03 02:03:37,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-03 02:03:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:03:38,383 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:03:38,385 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:03:39,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:03:40,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:03:40,083 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:03:40,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:40 BoogieIcfgContainer [2022-11-03 02:03:40,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:03:40,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:03:40,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:03:40,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:03:40,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:03:34" (1/3) ... [2022-11-03 02:03:40,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16216399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:40, skipping insertion in model container [2022-11-03 02:03:40,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:37" (2/3) ... [2022-11-03 02:03:40,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16216399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:40, skipping insertion in model container [2022-11-03 02:03:40,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:40" (3/3) ... [2022-11-03 02:03:40,105 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2022-11-03 02:03:40,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:03:40,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:03:40,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:03:40,230 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=LoopsAndPotentialCycles, 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;@db73a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:03:40,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:03:40,234 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) [2022-11-03 02:03:40,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 02:03:40,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:40,243 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] [2022-11-03 02:03:40,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 7795166, now seen corresponding path program 1 times [2022-11-03 02:03:40,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:40,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640497658] [2022-11-03 02:03:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:40,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 02:03:54,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:54,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640497658] [2022-11-03 02:03:54,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640497658] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:54,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626610522] [2022-11-03 02:03:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:54,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:54,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:54,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:54,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711d7673-74d4-4cda-9aeb-4a131576e7cb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:03:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:55,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-03 02:03:55,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:55,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:03:56,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:03:56,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:03:57,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:03:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:03:57,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 24 [2022-11-03 02:03:57,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:04:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:04:24,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:26,142 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-03 02:04:40,173 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.