./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS --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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- 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-8393723 [2022-11-19 06:45:50,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:45:50,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:45:50,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:45:50,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:45:50,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:45:50,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:45:50,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:45:50,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:45:50,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:45:50,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:45:50,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:45:50,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:45:50,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:45:50,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:45:50,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:45:50,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:45:50,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:45:50,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:45:50,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:45:50,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:45:50,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:45:50,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:45:50,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:45:50,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:45:50,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:45:50,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:45:50,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:45:50,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:45:50,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:45:50,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:45:50,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:45:50,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:45:50,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:45:50,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:45:50,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:45:50,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:45:50,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:45:50,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:45:50,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:45:50,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:45:50,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:45:50,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:45:50,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:45:50,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:45:50,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:45:50,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:45:50,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:45:50,658 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:45:50,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:45:50,658 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:45:50,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:45:50,660 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:45:50,660 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:45:50,660 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:45:50,660 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:45:50,661 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:45:50,661 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:45:50,661 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:45:50,661 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:45:50,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:45:50,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:45:50,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:45:50,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:45:50,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:45:50,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:45:50,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:45:50,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:45:50,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:45:50,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:45:50,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:45:50,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:45:50,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:45:50,667 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:45:50,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:45:50,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:45:50,668 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:45:50,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:45:50,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:45:50,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:45:50,668 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_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2022-11-19 06:45:51,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:45:51,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:45:51,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:45:51,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:45:51,038 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:45:51,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-19 06:45:51,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/data/e1c175326/03988226d5b34a8991c6be304957a969/FLAG73a2c3530 [2022-11-19 06:45:52,171 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:45:52,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2022-11-19 06:45:52,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/data/e1c175326/03988226d5b34a8991c6be304957a969/FLAG73a2c3530 [2022-11-19 06:45:52,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/data/e1c175326/03988226d5b34a8991c6be304957a969 [2022-11-19 06:45:52,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:45:52,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:45:52,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:45:52,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:45:52,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:45:52,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:45:52" (1/1) ... [2022-11-19 06:45:52,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b0f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:52, skipping insertion in model container [2022-11-19 06:45:52,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:45:52" (1/1) ... [2022-11-19 06:45:52,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:45:52,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:45:52,993 WARN L234 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_b021c962-8f67-4bee-a036-42a569782b42/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-19 06:45:53,002 WARN L234 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_b021c962-8f67-4bee-a036-42a569782b42/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-19 06:45:54,088 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,089 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,090 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,091 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,093 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,110 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,111 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,113 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,114 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 06:45:54,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 06:45:54,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 06:45:54,600 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 06:45:54,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 06:45:54,604 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 06:45:54,605 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 06:45:54,606 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 06:45:54,607 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 06:45:54,607 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 06:45:54,805 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 06:45:54,936 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:54,937 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:45:55,078 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:45:55,094 WARN L234 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_b021c962-8f67-4bee-a036-42a569782b42/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2022-11-19 06:45:55,095 WARN L234 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_b021c962-8f67-4bee-a036-42a569782b42/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2022-11-19 06:45:55,142 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,142 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,143 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,144 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,145 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,155 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,155 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,157 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,158 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 06:45:55,199 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 06:45:55,200 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 06:45:55,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 06:45:55,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 06:45:55,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 06:45:55,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 06:45:55,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 06:45:55,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 06:45:55,206 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 06:45:55,240 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 06:45:55,425 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,425 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 06:45:55,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:45:55,756 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:45:55,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55 WrapperNode [2022-11-19 06:45:55,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:45:55,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:45:55,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:45:55,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:45:55,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:55,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,001 INFO L138 Inliner]: procedures = 690, calls = 2636, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 870 [2022-11-19 06:45:56,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:45:56,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:45:56,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:45:56,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:45:56,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:45:56,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:45:56,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:45:56,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:45:56,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (1/1) ... [2022-11-19 06:45:56,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:45:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:45:56,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:45:56,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:45:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-19 06:45:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-19 06:45:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:45:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 06:45:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 06:45:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-19 06:45:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:45:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:45:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:45:56,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:45:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:45:56,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:45:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:45:56,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:45:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:45:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:45:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:45:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:45:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 06:45:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 06:45:56,224 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-19 06:45:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-19 06:45:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:45:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:45:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:45:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:45:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:45:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:45:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-19 06:45:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-19 06:45:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:45:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 06:45:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 06:45:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-19 06:45:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-19 06:45:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:45:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-19 06:45:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:45:56,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:45:56,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:45:58,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:45:58,661 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:45:58,661 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:45:58,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:45:58 BoogieIcfgContainer [2022-11-19 06:45:58,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:45:58,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:45:58,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:45:58,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:45:58,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:45:52" (1/3) ... [2022-11-19 06:45:58,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcf98ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:45:58, skipping insertion in model container [2022-11-19 06:45:58,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:45:55" (2/3) ... [2022-11-19 06:45:58,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcf98ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:45:58, skipping insertion in model container [2022-11-19 06:45:58,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:45:58" (3/3) ... [2022-11-19 06:45:58,681 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2022-11-19 06:45:58,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:45:58,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:45:58,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:45:58,817 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;@d09246e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:45:58,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:45:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-19 06:45:58,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 06:45:58,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:58,837 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 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] [2022-11-19 06:45:58,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:45:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1678221370, now seen corresponding path program 1 times [2022-11-19 06:45:58,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:58,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918885212] [2022-11-19 06:45:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:58,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 06:46:15,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:15,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918885212] [2022-11-19 06:46:15,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918885212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:46:15,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31927725] [2022-11-19 06:46:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:15,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:46:15,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:46:15,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:46:15,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b021c962-8f67-4bee-a036-42a569782b42/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:46:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:16,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-19 06:46:16,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:46:16,997 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 06:46:17,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:46:27,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:46:27,809 INFO L350 Elim1Store]: Elim1 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 81 treesize of output 65 [2022-11-19 06:46:27,923 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:46:27,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 06:46:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 06:46:28,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:46:31,360 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-19 06:55:08,500 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.