./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_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_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/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_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/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_46379432-69c2-4b0e-b935-1449c8ae876e/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- 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 01:53:49,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:53:49,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:53:49,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:53:49,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:53:49,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:53:49,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:53:49,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:53:49,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:53:49,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:53:49,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:53:49,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:53:49,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:53:49,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:53:49,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:53:49,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:53:49,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:53:49,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:53:49,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:53:49,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:53:49,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:53:49,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:53:49,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:53:49,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:53:49,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:53:49,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:53:49,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:53:49,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:53:49,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:53:49,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:53:49,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:53:49,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:53:49,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:53:49,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:53:49,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:53:49,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:53:49,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:53:49,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:53:49,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:53:49,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:53:49,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:53:49,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:53:49,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:53:49,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:53:49,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:53:49,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:53:49,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:53:49,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:53:49,520 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:53:49,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:53:49,521 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:53:49,521 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:53:49,522 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:53:49,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:53:49,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:53:49,523 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:53:49,523 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:53:49,523 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:53:49,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:53:49,524 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:53:49,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:53:49,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:53:49,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:53:49,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:53:49,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:53:49,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:53:49,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:53:49,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:53:49,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:53:49,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:53:49,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:53:49,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:49,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:53:49,528 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:53:49,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:53:49,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:53:49,529 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:53:49,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:53:49,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:53:49,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:53:49,529 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_46379432-69c2-4b0e-b935-1449c8ae876e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2022-11-03 01:53:49,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:53:49,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:53:49,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:53:49,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:53:49,937 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:53:49,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-03 01:53:50,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/data/947159a95/f570f8b0c25d4eeabcf0f74e3c6fe269/FLAGba943e8cb [2022-11-03 01:53:50,984 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:53:50,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-03 01:53:51,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/data/947159a95/f570f8b0c25d4eeabcf0f74e3c6fe269/FLAGba943e8cb [2022-11-03 01:53:51,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/data/947159a95/f570f8b0c25d4eeabcf0f74e3c6fe269 [2022-11-03 01:53:51,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:53:51,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:53:51,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:51,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:53:51,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:53:51,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:51" (1/1) ... [2022-11-03 01:53:51,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264e27e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:51, skipping insertion in model container [2022-11-03 01:53:51,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:51" (1/1) ... [2022-11-03 01:53:51,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:53:51,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:53:51,942 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_46379432-69c2-4b0e-b935-1449c8ae876e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-03 01:53:51,953 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_46379432-69c2-4b0e-b935-1449c8ae876e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-03 01:53:52,999 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,000 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,001 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,002 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,003 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,030 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,031 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,033 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,034 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,469 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 01:53:53,471 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 01:53:53,472 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 01:53:53,474 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 01:53:53,475 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 01:53:53,476 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 01:53:53,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 01:53:53,484 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 01:53:53,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 01:53:53,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 01:53:53,683 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 01:53:53,916 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:53,917 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:54,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:53:54,115 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_46379432-69c2-4b0e-b935-1449c8ae876e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-03 01:53:54,116 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_46379432-69c2-4b0e-b935-1449c8ae876e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-03 01:53:54,172 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,173 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,173 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,174 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,174 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,188 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,189 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,190 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,191 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 01:53:54,243 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 01:53:54,244 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 01:53:54,244 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 01:53:54,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 01:53:54,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 01:53:54,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 01:53:54,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 01:53:54,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 01:53:54,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 01:53:54,289 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 01:53:54,408 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,408 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 01:53:54,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:54,733 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:53:54,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54 WrapperNode [2022-11-03 01:53:54,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:54,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:54,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:53:54,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:53:54,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:54,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,015 INFO L138 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 866 [2022-11-03 01:53:55,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:55,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:53:55,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:53:55,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:53:55,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:53:55,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:53:55,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:53:55,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:53:55,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (1/1) ... [2022-11-03 01:53:55,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:55,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:55,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:53:55,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:53:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2022-11-03 01:53:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 01:53:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 01:53:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:53:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 01:53:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 01:53:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:53:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 01:53:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 01:53:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:53:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:53:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:53:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-03 01:53:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-03 01:53:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:53:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:53:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 01:53:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 01:53:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 01:53:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 01:53:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:53:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:53:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-03 01:53:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-03 01:53:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:53:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:53:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-03 01:53:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-03 01:53:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:53:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 01:53:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 01:53:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:53:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:53:55,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:53:55,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:53:57,200 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:53:57,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:53:57,606 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:53:57,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:57 BoogieIcfgContainer [2022-11-03 01:53:57,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:53:57,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:53:57,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:53:57,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:53:57,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:53:51" (1/3) ... [2022-11-03 01:53:57,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d27e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:57, skipping insertion in model container [2022-11-03 01:53:57,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:54" (2/3) ... [2022-11-03 01:53:57,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d27e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:57, skipping insertion in model container [2022-11-03 01:53:57,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:57" (3/3) ... [2022-11-03 01:53:57,622 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2022-11-03 01:53:57,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:53:57,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:53:57,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:53:57,718 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=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;@35bb0af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:53:57,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:53:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 01:53:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-03 01:53:57,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:57,735 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 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 01:53:57,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:57,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1503298337, now seen corresponding path program 1 times [2022-11-03 01:53:57,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:57,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102635501] [2022-11-03 01:53:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:54:17,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:17,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102635501] [2022-11-03 01:54:17,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102635501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:17,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478888124] [2022-11-03 01:54:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:17,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:54:17,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:17,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:54:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46379432-69c2-4b0e-b935-1449c8ae876e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:54:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:17,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 2605 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-03 01:54:17,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:18,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 01:54:18,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:18,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-03 01:54:23,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:23,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-03 01:54:38,043 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:38,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 62 [2022-11-03 01:54:38,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:38,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 17 [2022-11-03 01:54:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:54:38,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:41,100 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-03 02:02:36,708 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.