./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:28,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:29,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:29:29,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:29,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:29,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:29,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:29,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:29,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:29,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:29,176 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:29,177 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:29,178 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:29,183 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:29,183 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:29,184 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:29,185 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:29,186 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:29,186 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:29,187 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:29,187 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:29,188 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:29,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:29,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:29,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:29,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:29,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:29,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:29,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:29,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:29,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:29,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:29,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:29,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:29,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:29,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:29,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:29,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:29,197 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:29,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:29,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:29,198 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:29,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:29,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:29,199 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2023-11-23 21:29:29,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:29,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:29,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:29,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:29,597 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:29,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2023-11-23 21:29:32,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:33,372 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:33,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2023-11-23 21:29:33,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/data/dbc13f2ca/c7e70e90bb1b4778980bde050c4b21c0/FLAGa85b56386 [2023-11-23 21:29:33,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/data/dbc13f2ca/c7e70e90bb1b4778980bde050c4b21c0 [2023-11-23 21:29:33,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:33,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:33,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:33,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:33,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:33,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413c2251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33, skipping insertion in model container [2023-11-23 21:29:33,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,599 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:33,930 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2023-11-23 21:29:33,940 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2023-11-23 21:29:35,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,193 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,213 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,214 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,216 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,217 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:35,882 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:29:35,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:29:35,884 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:29:35,886 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:29:35,887 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:29:35,888 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:29:35,889 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:29:35,890 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:29:35,891 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:29:35,892 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:29:36,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,203 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:36,357 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:36,372 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2023-11-23 21:29:36,373 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2023-11-23 21:29:36,423 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,426 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,426 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,428 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,428 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,436 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,441 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,444 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,504 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:29:36,505 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:29:36,506 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:29:36,510 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:29:36,511 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:29:36,512 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:29:36,513 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:29:36,513 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:29:36,514 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:29:36,514 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:29:36,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-23 21:29:36,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:29:36,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-23 21:29:36,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:37,052 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,052 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,053 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,053 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,055 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,055 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,055 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,055 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,055 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,057 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,057 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,057 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,057 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,058 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,058 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,058 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,058 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,059 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:29:37,068 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:37,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37 WrapperNode [2023-11-23 21:29:37,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:37,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:37,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:37,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:37,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,364 INFO L138 Inliner]: procedures = 690, calls = 2646, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 857 [2023-11-23 21:29:37,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:37,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:37,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:37,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:37,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:37,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:37,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:37,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:37,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (1/1) ... [2023-11-23 21:29:37,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:37,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:37,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:37,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 21:29:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 21:29:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:29:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:29:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:29:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:29:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:29:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2023-11-23 21:29:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2023-11-23 21:29:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:29:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 21:29:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 21:29:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:29:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:29:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:29:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:29:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 21:29:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 21:29:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:29:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:29:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 21:29:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 21:29:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:29:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:29:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:29:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:29:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:29:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-23 21:29:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-23 21:29:37,622 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:29:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:29:37,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:29:37,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:38,002 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:38,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:39,240 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:39,832 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:39,832 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:39,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:39 BoogieIcfgContainer [2023-11-23 21:29:39,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:39,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:39,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:39,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:39,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:33" (1/3) ... [2023-11-23 21:29:39,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562337f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:39, skipping insertion in model container [2023-11-23 21:29:39,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:37" (2/3) ... [2023-11-23 21:29:39,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562337f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:39, skipping insertion in model container [2023-11-23 21:29:39,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:39" (3/3) ... [2023-11-23 21:29:39,849 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2023-11-23 21:29:39,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:39,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:39,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:39,963 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1aac9d19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:39,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-23 21:29:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 21:29:39,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:39,985 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:39,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:39,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash 247735700, now seen corresponding path program 1 times [2023-11-23 21:29:40,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:40,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7322192] [2023-11-23 21:29:40,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:40,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-23 21:29:51,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:51,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7322192] [2023-11-23 21:29:51,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7322192] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:51,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744709138] [2023-11-23 21:29:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:51,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:51,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:51,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:51,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b07d12-4bcf-4361-8aa3-be8e7a541db5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:29:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:52,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 2571 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-23 21:29:52,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:53,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:29:53,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:29:57,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-23 21:29:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 21:29:57,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:58,985 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-11-23 21:30:07,681 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.