./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 0e0057cc 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_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/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_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh --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 0.2.4-dev-0e0057c [2023-12-02 18:10:24,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:10:24,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:10:24,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:10:24,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:10:24,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:10:24,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:10:24,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:10:24,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:10:24,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:10:24,637 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:10:24,638 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:10:24,638 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:10:24,639 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:10:24,640 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:10:24,640 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:10:24,641 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:10:24,642 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:10:24,642 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:10:24,643 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:10:24,643 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:10:24,644 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:10:24,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:10:24,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:10:24,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:10:24,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:10:24,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:10:24,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:10:24,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:10:24,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:10:24,649 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:10:24,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:10:24,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:10:24,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:10:24,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:24,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:10:24,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:10:24,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:10:24,651 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:10:24,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:10:24,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:10:24,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:10:24,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:10:24,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:10:24,653 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_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2023-12-02 18:10:24,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:10:24,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:10:24,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:10:24,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:10:24,936 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:10:24,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2023-12-02 18:10:28,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:10:28,889 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:10:28,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2023-12-02 18:10:28,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/data/ced2e3c77/55defbbcb95f4557824aeca28ebfcd83/FLAG6dbba0247 [2023-12-02 18:10:28,940 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/data/ced2e3c77/55defbbcb95f4557824aeca28ebfcd83 [2023-12-02 18:10:28,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:10:28,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:10:28,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:28,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:10:28,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:10:28,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:28" (1/1) ... [2023-12-02 18:10:28,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4383a614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:28, skipping insertion in model container [2023-12-02 18:10:28,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:28" (1/1) ... [2023-12-02 18:10:29,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:10:29,383 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_56d321c1-2750-4cfa-9217-e058ebed44fc/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2023-12-02 18:10:29,391 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_56d321c1-2750-4cfa-9217-e058ebed44fc/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2023-12-02 18:10:30,445 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,446 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,447 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,448 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,450 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,471 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:30,938 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:10:30,939 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:10:30,940 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:10:30,942 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:10:30,944 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:10:30,945 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:10:30,946 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:10:30,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:10:30,948 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:10:30,949 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:10:31,267 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,268 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:31,415 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:10:31,432 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_56d321c1-2750-4cfa-9217-e058ebed44fc/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2023-12-02 18:10:31,432 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_56d321c1-2750-4cfa-9217-e058ebed44fc/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2023-12-02 18:10:31,473 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,522 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:10:31,523 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:10:31,523 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:10:31,524 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:10:31,525 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:10:31,526 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:10:31,526 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:10:31,558 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:10:31,558 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:10:31,559 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:10:31,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-12-02 18:10:31,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,648 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:10:31,665 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-12-02 18:10:31,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:10:31,952 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,952 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,952 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,953 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,953 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,953 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,953 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,953 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,954 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,955 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,955 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,955 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,955 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:10:31,964 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:10:31,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31 WrapperNode [2023-12-02 18:10:31,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:10:31,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:31,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:10:31,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:10:31,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,156 INFO L138 Inliner]: procedures = 690, calls = 2646, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 857 [2023-12-02 18:10:32,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:10:32,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:10:32,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:10:32,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:10:32,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:10:32,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:10:32,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:10:32,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:10:32,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (1/1) ... [2023-12-02 18:10:32,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:10:32,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:10:32,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:10:32,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:10:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-12-02 18:10:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-12-02 18:10:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-12-02 18:10:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-12-02 18:10:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:10:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 18:10:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 18:10:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2023-12-02 18:10:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2023-12-02 18:10:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:10:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 18:10:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 18:10:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 18:10:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-12-02 18:10:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:10:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:10:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 18:10:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 18:10:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:10:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:10:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-12-02 18:10:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-12-02 18:10:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:10:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:10:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:10:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 18:10:32,372 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 18:10:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-12-02 18:10:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-12-02 18:10:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 18:10:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 18:10:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:10:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:10:32,668 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:10:32,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:10:34,116 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:10:34,598 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:10:34,598 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:10:34,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:34 BoogieIcfgContainer [2023-12-02 18:10:34,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:10:34,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:10:34,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:10:34,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:10:34,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:10:28" (1/3) ... [2023-12-02 18:10:34,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e9284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:34, skipping insertion in model container [2023-12-02 18:10:34,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:31" (2/3) ... [2023-12-02 18:10:34,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e9284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:34, skipping insertion in model container [2023-12-02 18:10:34,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:34" (3/3) ... [2023-12-02 18:10:34,610 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2023-12-02 18:10:34,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:10:34,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:10:34,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:10:34,706 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;@157b407a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:10:34,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:10:34,712 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) [2023-12-02 18:10:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 18:10:34,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:10:34,725 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] [2023-12-02 18:10:34,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:10:34,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:10:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 247735700, now seen corresponding path program 1 times [2023-12-02 18:10:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:10:34,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402599153] [2023-12-02 18:10:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:10:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:10:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 18:10:44,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:10:45,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402599153] [2023-12-02 18:10:45,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402599153] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:10:45,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872631547] [2023-12-02 18:10:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:45,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:10:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:10:45,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:10:45,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d321c1-2750-4cfa-9217-e058ebed44fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:10:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:10:45,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 2571 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-02 18:10:45,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:10:46,150 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 [2023-12-02 18:10:46,157 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 [2023-12-02 18:10:50,205 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 [2023-12-02 18:10:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 18:10:50,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:10:52,007 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time... [2023-12-02 18:11:01,501 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.