./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7 --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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:10:05,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:10:05,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:10:05,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:10:05,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:10:05,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:10:05,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:10:05,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:10:05,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:10:05,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:10:05,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:10:05,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:10:05,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:10:05,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:10:05,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:10:05,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:10:05,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:10:05,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:10:05,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:10:06,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:10:06,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:10:06,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:10:06,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:10:06,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:10:06,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:10:06,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:10:06,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:10:06,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:10:06,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:10:06,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:10:06,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:10:06,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:10:06,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:10:06,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:10:06,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:10:06,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:10:06,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:10:06,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:10:06,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:10:06,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:10:06,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:10:06,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:10:06,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:10:06,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:10:06,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:10:06,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:10:06,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:10:06,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:10:06,092 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:10:06,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:10:06,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:10:06,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:10:06,094 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:10:06,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:10:06,094 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:10:06,095 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:10:06,095 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:10:06,095 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:10:06,095 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:10:06,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:10:06,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:10:06,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:10:06,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:10:06,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:10:06,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:10:06,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:10:06,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:10:06,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:10:06,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:10:06,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:10:06,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:10:06,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:10:06,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:10:06,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:10:06,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:10:06,102 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:10:06,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:10:06,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:10:06,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:10:06,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:10:06,103 INFO L138 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_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-25 19:10:06,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:10:06,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:10:06,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:10:06,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:10:06,479 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:10:06,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-25 19:10:06,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/data/ffa92b208/6343d9cad5984aea84400a60aa25a503/FLAGe088e2570 [2021-11-25 19:10:07,621 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:10:07,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-25 19:10:07,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/data/ffa92b208/6343d9cad5984aea84400a60aa25a503/FLAGe088e2570 [2021-11-25 19:10:07,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/data/ffa92b208/6343d9cad5984aea84400a60aa25a503 [2021-11-25 19:10:07,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:10:07,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:10:07,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:10:07,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:10:07,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:10:07,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:10:07" (1/1) ... [2021-11-25 19:10:07,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cdeda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:07, skipping insertion in model container [2021-11-25 19:10:07,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:10:07" (1/1) ... [2021-11-25 19:10:07,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:10:08,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:10:08,361 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_b6500512-7ec9-447d-856a-a89806861e4c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-25 19:10:08,370 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_b6500512-7ec9-447d-856a-a89806861e4c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-25 19:10:09,405 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,406 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,406 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,407 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,409 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,425 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,426 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,429 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,430 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:09,858 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:10:09,860 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:10:09,861 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:10:09,862 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:10:09,863 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:10:09,864 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:10:09,865 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:10:09,865 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:10:09,866 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:10:09,867 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:10:10,100 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:10:10,238 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,238 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:10:10,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:10:10,481 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_b6500512-7ec9-447d-856a-a89806861e4c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-25 19:10:10,482 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_b6500512-7ec9-447d-856a-a89806861e4c/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-25 19:10:10,527 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,528 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,528 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,528 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,529 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,543 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,544 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,545 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,545 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,605 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:10:10,606 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:10:10,607 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:10:10,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:10:10,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:10:10,610 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:10:10,610 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:10:10,611 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:10:10,611 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:10:10,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:10:10,646 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:10:10,728 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,728 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:10:10,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:10:11,106 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:10:11,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11 WrapperNode [2021-11-25 19:10:11,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:10:11,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:10:11,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:10:11,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:10:11,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,396 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 856 [2021-11-25 19:10:11,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:10:11,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:10:11,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:10:11,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:10:11,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:10:11,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:10:11,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:10:11,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:10:11,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (1/1) ... [2021-11-25 19:10:11,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:10:11,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:10:11,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:10:11,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:10:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-25 19:10:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-25 19:10:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:10:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 19:10:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 19:10:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:10:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:10:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:10:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:10:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:10:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:10:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-25 19:10:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-25 19:10:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:10:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:10:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 19:10:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 19:10:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-25 19:10:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-25 19:10:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:10:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:10:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-25 19:10:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-25 19:10:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:10:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:10:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-11-25 19:10:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-11-25 19:10:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:10:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-25 19:10:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-25 19:10:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:10:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:10:12,010 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:10:12,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:10:13,569 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:10:13,838 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:10:13,838 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:10:13,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:10:13 BoogieIcfgContainer [2021-11-25 19:10:13,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:10:13,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:10:13,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:10:13,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:10:13,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:10:07" (1/3) ... [2021-11-25 19:10:13,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b34859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:10:13, skipping insertion in model container [2021-11-25 19:10:13,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:10:11" (2/3) ... [2021-11-25 19:10:13,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b34859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:10:13, skipping insertion in model container [2021-11-25 19:10:13,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:10:13" (3/3) ... [2021-11-25 19:10:13,852 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-11-25 19:10:13,860 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:10:13,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:10:13,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:10:13,966 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:10:13,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:10:13,994 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) [2021-11-25 19:10:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-25 19:10:14,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:14,006 INFO L514 BasicCegarLoop]: 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] [2021-11-25 19:10:14,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:10:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:14,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1762663939, now seen corresponding path program 1 times [2021-11-25 19:10:14,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:14,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809232294] [2021-11-25 19:10:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:14,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 19:10:19,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:19,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809232294] [2021-11-25 19:10:19,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809232294] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:10:19,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235045076] [2021-11-25 19:10:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:19,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:10:19,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:10:19,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:10:19,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6500512-7ec9-447d-856a-a89806861e4c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:10:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:20,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 2586 conjuncts, 105 conjunts are in the unsatisfiable core [2021-11-25 19:10:20,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:10:21,122 INFO L388 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 [2021-11-25 19:10:21,132 INFO L388 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 [2021-11-25 19:10:21,698 INFO L388 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 20 treesize of output 19 [2021-11-25 19:10:21,706 INFO L388 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 6 treesize of output 5 [2021-11-25 19:10:45,268 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:10:45,269 INFO L388 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 [2021-11-25 19:10:45,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:10:45,336 INFO L388 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 [2021-11-25 19:10:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:10:45,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:10:48,179 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time...