./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:41:23,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:41:23,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:41:23,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:41:23,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:41:23,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:41:23,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:41:23,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:41:23,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:41:23,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:41:23,992 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:41:23,993 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:41:23,993 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:41:23,994 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:41:23,994 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:41:23,995 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:41:23,995 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:41:23,996 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:41:23,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:41:23,997 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:41:23,997 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:41:23,998 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:41:23,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:41:23,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:41:23,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:41:24,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:41:24,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:41:24,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:41:24,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:41:24,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:41:24,001 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:41:24,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:41:24,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:41:24,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:41:24,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:24,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:41:24,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:41:24,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:41:24,003 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:41:24,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:41:24,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:41:24,004 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:41:24,004 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:41:24,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:41:24,004 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2023-12-02 15:41:24,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:41:24,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:41:24,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:41:24,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:41:24,219 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:41:24,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-12-02 15:41:26,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:41:27,323 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:41:27,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2023-12-02 15:41:27,355 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/data/42bea4f82/be35204a66cc42c280fea82209b83112/FLAGe79856dff [2023-12-02 15:41:27,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/data/42bea4f82/be35204a66cc42c280fea82209b83112 [2023-12-02 15:41:27,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:41:27,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:41:27,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:27,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:41:27,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:41:27,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:27" (1/1) ... [2023-12-02 15:41:27,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af535c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:27, skipping insertion in model container [2023-12-02 15:41:27,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:41:27" (1/1) ... [2023-12-02 15:41:27,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:41:27,696 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-12-02 15:41:27,702 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-12-02 15:41:28,612 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,615 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,616 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,630 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,631 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,633 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,634 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:28,946 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 15:41:28,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 15:41:28,948 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 15:41:28,949 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 15:41:28,950 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 15:41:28,951 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 15:41:28,952 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 15:41:28,952 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 15:41:28,953 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 15:41:28,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 15:41:29,169 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,170 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:29,282 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:41:29,296 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2023-12-02 15:41:29,297 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_c949b9d1-7fdc-47cc-9613-53c874d38a3d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2023-12-02 15:41:29,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,342 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,343 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,344 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,344 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,379 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 15:41:29,380 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 15:41:29,380 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 15:41:29,381 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 15:41:29,382 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 15:41:29,382 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 15:41:29,383 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 15:41:29,383 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 15:41:29,384 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 15:41:29,384 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 15:41:29,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-12-02 15:41:29,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,514 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 15:41:29,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-12-02 15:41:29,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:41:29,775 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,775 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,775 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,775 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,776 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,777 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,778 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,778 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:41:29,786 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:41:29,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29 WrapperNode [2023-12-02 15:41:29,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:41:29,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:29,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:41:29,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:41:29,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,943 INFO L138 Inliner]: procedures = 690, calls = 2642, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2023-12-02 15:41:29,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:41:29,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:41:29,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:41:29,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:41:29,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:29,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:30,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:30,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:30,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:30,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:41:30,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:41:30,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:41:30,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:41:30,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (1/1) ... [2023-12-02 15:41:30,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:41:30,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:30,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:41:30,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:41:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-12-02 15:41:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-12-02 15:41:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-12-02 15:41:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-12-02 15:41:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:41:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 15:41:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 15:41:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-12-02 15:41:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:41:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:41:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:41:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 15:41:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 15:41:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 15:41:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 15:41:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:41:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:41:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:41:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:41:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:41:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 15:41:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 15:41:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 15:41:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 15:41:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:41:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:41:30,363 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:41:30,366 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:41:31,468 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:41:31,741 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:41:31,741 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:41:31,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:41:31 BoogieIcfgContainer [2023-12-02 15:41:31,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:41:31,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:41:31,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:41:31,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:41:31,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:41:27" (1/3) ... [2023-12-02 15:41:31,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2bc8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:41:31, skipping insertion in model container [2023-12-02 15:41:31,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:41:29" (2/3) ... [2023-12-02 15:41:31,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2bc8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:41:31, skipping insertion in model container [2023-12-02 15:41:31,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:41:31" (3/3) ... [2023-12-02 15:41:31,752 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2023-12-02 15:41:31,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:41:31,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:41:31,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:41:31,830 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;@1dd8843b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:41:31,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:41:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 15:41:31,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 15:41:31,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:41:31,849 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:31,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:41:31,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:41:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1025664609, now seen corresponding path program 1 times [2023-12-02 15:41:31,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:41:31,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20847352] [2023-12-02 15:41:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:41:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:41:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-02 15:41:44,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:41:44,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20847352] [2023-12-02 15:41:44,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20847352] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:41:44,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126536639] [2023-12-02 15:41:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:44,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:41:44,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:44,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:41:44,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c949b9d1-7fdc-47cc-9613-53c874d38a3d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:41:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:41:45,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 108 conjunts are in the unsatisfiable core [2023-12-02 15:41:45,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:41:46,192 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 [2023-12-02 15:41:49,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:41:49,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2023-12-02 15:41:53,527 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 108 treesize of output 96 [2023-12-02 15:41:53,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:41:53,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 111 [2023-12-02 15:41:53,566 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 72 treesize of output 60 [2023-12-02 15:41:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 15:41:53,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:41:55,590 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 56951 disjunctions. This might take some time... [2023-12-02 15:45:27,826 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 56951 disjunctions.