./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/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_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/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_47e12a32-41a3-4515-8dab-be5ff6a103ca/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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:20:45,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:20:45,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:20:45,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:20:45,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:20:45,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:20:45,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:20:45,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:20:45,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:20:45,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:20:45,987 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:20:45,988 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:20:45,989 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:20:45,990 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:20:45,991 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:20:45,992 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:20:45,992 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:20:45,993 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:20:45,993 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:20:45,994 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:20:45,994 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:20:45,995 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:20:45,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:20:45,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:20:45,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:20:45,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:20:45,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:20:45,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:20:46,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:20:46,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:20:46,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:20:46,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:20:46,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:20:46,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:20:46,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:20:46,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:20:46,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:20:46,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:20:46,025 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:20:46,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:20:46,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:20:46,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:20:46,027 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:20:46,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:20:46,028 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2023-11-23 21:20:46,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:20:46,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:20:46,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:20:46,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:20:46,383 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:20:46,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-23 21:20:49,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:20:50,410 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:20:50,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2023-11-23 21:20:50,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/data/fdff867dc/0ba32eca24fb4000a57b6b817769c9d0/FLAG23696baf8 [2023-11-23 21:20:50,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/data/fdff867dc/0ba32eca24fb4000a57b6b817769c9d0 [2023-11-23 21:20:50,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:20:50,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:20:50,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:50,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:20:50,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:20:50,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:50" (1/1) ... [2023-11-23 21:20:50,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d5e278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:50, skipping insertion in model container [2023-11-23 21:20:50,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:50" (1/1) ... [2023-11-23 21:20:50,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:20:50,999 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-23 21:20:51,009 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-23 21:20:52,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,382 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,385 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,418 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,418 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,421 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:52,919 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:20:52,920 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:20:52,921 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:20:52,925 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:20:52,930 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:20:52,931 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:20:52,932 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:20:52,934 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:20:52,936 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:20:52,938 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:20:53,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,361 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:53,543 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:20:53,558 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2023-11-23 21:20:53,559 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_47e12a32-41a3-4515-8dab-be5ff6a103ca/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2023-11-23 21:20:53,593 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,593 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,594 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,595 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,596 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,602 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,603 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,604 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,605 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,640 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:20:53,641 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:20:53,642 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:20:53,643 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:20:53,644 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:20:53,645 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:20:53,645 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:20:53,646 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:20:53,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:20:53,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:20:53,707 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2023-11-23 21:20:53,794 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,795 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:20:53,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2023-11-23 21:20:53,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:54,223 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,227 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,228 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,228 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,228 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,228 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,228 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,229 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,230 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,230 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,230 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,230 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:20:54,238 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:20:54,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54 WrapperNode [2023-11-23 21:20:54,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:54,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:54,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:20:54,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:20:54,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,504 INFO L138 Inliner]: procedures = 690, calls = 2649, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2023-11-23 21:20:54,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:54,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:20:54,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:20:54,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:20:54,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:20:54,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:20:54,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:20:54,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:20:54,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (1/1) ... [2023-11-23 21:20:54,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:20:54,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:20:54,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:20:54,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:20:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 21:20:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 21:20:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 21:20:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 21:20:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:20:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:20:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:20:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:20:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 21:20:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 21:20:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:20:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:20:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:20:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:20:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:20:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:20:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:20:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:20:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:20:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:20:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:20:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:20:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 21:20:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 21:20:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:20:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:20:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:20:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:20:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 21:20:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 21:20:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-23 21:20:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-23 21:20:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 21:20:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 21:20:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:20:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:20:55,121 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:20:55,124 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:20:56,711 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:20:57,148 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:20:57,149 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:20:57,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:57 BoogieIcfgContainer [2023-11-23 21:20:57,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:20:57,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:20:57,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:20:57,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:20:57,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:20:50" (1/3) ... [2023-11-23 21:20:57,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac121c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:57, skipping insertion in model container [2023-11-23 21:20:57,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:54" (2/3) ... [2023-11-23 21:20:57,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac121c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:57, skipping insertion in model container [2023-11-23 21:20:57,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:57" (3/3) ... [2023-11-23 21:20:57,162 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2023-11-23 21:20:57,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:20:57,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:20:57,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:20:57,259 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;@5656b9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:20:57,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:20:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-23 21:20:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:20:57,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:57,275 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:20:57,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:57,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:57,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1005803546, now seen corresponding path program 1 times [2023-11-23 21:20:57,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:20:57,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716817706] [2023-11-23 21:20:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:20:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-23 21:21:08,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:08,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716817706] [2023-11-23 21:21:08,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716817706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:21:08,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393498540] [2023-11-23 21:21:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:08,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:21:08,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:08,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:21:08,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e12a32-41a3-4515-8dab-be5ff6a103ca/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:21:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:09,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-23 21:21:09,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:21:10,037 INFO L378 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 15 treesize of output 1 [2023-11-23 21:21:11,328 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 8 treesize of output 1 [2023-11-23 21:21:11,333 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 21:21:11,367 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-23 21:21:11,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2023-11-23 21:21:28,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:21:28,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 416 treesize of output 592 [2023-11-23 21:21:28,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:21:28,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 379 treesize of output 483 [2023-11-23 21:21:30,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:21:30,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 331 treesize of output 699