./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX --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 c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:07:55,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:07:55,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:07:55,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:07:55,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:07:55,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:07:55,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:07:55,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:07:55,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:07:55,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:07:55,252 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:07:55,253 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:07:55,254 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:07:55,255 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:07:55,256 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:07:55,256 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:07:55,257 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:07:55,258 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:07:55,259 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:07:55,259 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:07:55,260 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:07:55,261 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:07:55,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:07:55,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:07:55,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:07:55,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:07:55,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:07:55,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:07:55,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:07:55,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:07:55,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:07:55,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:07:55,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:07:55,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:07:55,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:07:55,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:07:55,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:07:55,272 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:07:55,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:07:55,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:07:55,273 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:07:55,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:07:55,275 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_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d [2023-11-12 00:07:55,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:07:55,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:07:55,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:07:55,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:07:55,659 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:07:55,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2023-11-12 00:07:58,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:07:59,638 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:07:59,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2023-11-12 00:07:59,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/data/58b8931cb/83a41c8788f94f57813c67d73a0f6552/FLAG3efc67dff [2023-11-12 00:07:59,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/data/58b8931cb/83a41c8788f94f57813c67d73a0f6552 [2023-11-12 00:07:59,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:07:59,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:07:59,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:07:59,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:07:59,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:07:59,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:59" (1/1) ... [2023-11-12 00:07:59,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c7169f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:59, skipping insertion in model container [2023-11-12 00:07:59,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:59" (1/1) ... [2023-11-12 00:07:59,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:00,206 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_c70f2bce-3225-44db-bd4f-b4879334020a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2023-11-12 00:08:00,215 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_c70f2bce-3225-44db-bd4f-b4879334020a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2023-11-12 00:08:01,357 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,358 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,359 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,360 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,362 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,382 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,384 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,386 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,387 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:01,939 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:01,943 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:01,961 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:01,963 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:01,965 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:01,966 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:01,967 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:01,968 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:01,969 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:01,970 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:02,414 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,415 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:02,669 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:02,694 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_c70f2bce-3225-44db-bd4f-b4879334020a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2023-11-12 00:08:02,695 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_c70f2bce-3225-44db-bd4f-b4879334020a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2023-11-12 00:08:02,754 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,756 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,756 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,757 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,758 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,774 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,775 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,777 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,777 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,828 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:02,829 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:02,830 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:02,831 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:02,832 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:02,833 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:02,833 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:02,834 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:02,834 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:02,835 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:02,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2023-11-12 00:08:02,911 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,912 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:02,926 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2023-11-12 00:08:02,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:03,322 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,323 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,323 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,323 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,323 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,324 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,325 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,325 WARN L672 CHandler]: The function s_global_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,325 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,325 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,326 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,327 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,327 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,327 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,327 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,328 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,328 WARN L672 CHandler]: The function tl_thread_handler is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,329 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,329 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,329 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:03,337 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:03,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03 WrapperNode [2023-11-12 00:08:03,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:03,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:03,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:03,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:03,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,659 INFO L138 Inliner]: procedures = 692, calls = 2790, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 832 [2023-11-12 00:08:03,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:03,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:03,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:03,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:03,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:03,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:03,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:03,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:03,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (1/1) ... [2023-11-12 00:08:03,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:03,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:03,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 00:08:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 00:08:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:08:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:08:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:08:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:08:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:08:03,865 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:08:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:08:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:08:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:08:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:08:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:08:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:03,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:08:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:08:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:08:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:08:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2023-11-12 00:08:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2023-11-12 00:08:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:08:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:08:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:08:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:08:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:08:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:08:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:08:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:08:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:04,241 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:04,244 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:05,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:06,203 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:06,203 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:08:06,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:06 BoogieIcfgContainer [2023-11-12 00:08:06,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:06,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:06,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:06,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:06,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:07:59" (1/3) ... [2023-11-12 00:08:06,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2701d4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:06, skipping insertion in model container [2023-11-12 00:08:06,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:03" (2/3) ... [2023-11-12 00:08:06,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2701d4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:06, skipping insertion in model container [2023-11-12 00:08:06,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:06" (3/3) ... [2023-11-12 00:08:06,226 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness.i [2023-11-12 00:08:06,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:06,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:08:06,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:08:06,334 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;@745b4c40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:08:06,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:08:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-12 00:08:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 00:08:06,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:06,357 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-11-12 00:08:06,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:06,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1835026319, now seen corresponding path program 1 times [2023-11-12 00:08:06,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:06,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956008123] [2023-11-12 00:08:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-12 00:08:10,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:10,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956008123] [2023-11-12 00:08:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956008123] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:08:10,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562750291] [2023-11-12 00:08:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:10,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:10,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:10,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:10,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:08:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:11,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-12 00:08:11,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:11,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-11-12 00:08:11,763 INFO L351 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 15 treesize of output 1 [2023-11-12 00:08:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:08:13,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562750291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:08:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [10] total 28 [2023-11-12 00:08:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818459110] [2023-11-12 00:08:13,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:13,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-12 00:08:13,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:13,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-12 00:08:13,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2023-11-12 00:08:13,818 INFO L87 Difference]: Start difference. First operand has 73 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 20 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 7 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 00:08:16,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:08:18,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:08:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:20,037 INFO L93 Difference]: Finished difference Result 117 states and 145 transitions. [2023-11-12 00:08:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-12 00:08:20,040 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 7 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) Word has length 55 [2023-11-12 00:08:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:20,051 INFO L225 Difference]: With dead ends: 117 [2023-11-12 00:08:20,052 INFO L226 Difference]: Without dead ends: 79 [2023-11-12 00:08:20,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 32 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=160, Invalid=1480, Unknown=0, NotChecked=0, Total=1640 [2023-11-12 00:08:20,060 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 67 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 73 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:20,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 450 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1033 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2023-11-12 00:08:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-12 00:08:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-12 00:08:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 40 states have internal predecessors, (41), 25 states have call successors, (25), 13 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 00:08:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2023-11-12 00:08:20,145 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 55 [2023-11-12 00:08:20,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:20,146 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2023-11-12 00:08:20,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 7 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 00:08:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2023-11-12 00:08:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 00:08:20,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:20,154 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 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] [2023-11-12 00:08:20,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:08:20,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:20,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:20,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:20,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1843813961, now seen corresponding path program 1 times [2023-11-12 00:08:20,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119191107] [2023-11-12 00:08:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 00:08:23,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119191107] [2023-11-12 00:08:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119191107] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:08:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913509275] [2023-11-12 00:08:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:23,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:23,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:23,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:23,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f2bce-3225-44db-bd4f-b4879334020a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:08:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:23,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 2647 conjuncts, 121 conjunts are in the unsatisfiable core [2023-11-12 00:08:23,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:24,045 INFO L351 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 8 treesize of output 1 [2023-11-12 00:08:27,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:27,380 INFO L322 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2023-11-12 00:08:27,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 137 treesize of output 128 [2023-11-12 00:08:32,384 INFO L322 Elim1Store]: treesize reduction 444, result has 25.1 percent of original size [2023-11-12 00:08:32,385 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 17 new quantified variables, introduced 55 case distinctions, treesize of input 247 treesize of output 309 [2023-11-12 00:08:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:08:33,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:08:36,523 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (not (= |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.base| 0))) (.cse4 (+ 8 |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.offset|)) (.cse0 (+ |c_#StackHeapBarrier| 1))) (and (or (forall ((v_ArrVal_199 (Array Int Int)) (|v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| Int)) (or (< |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| .cse0) (= (mod (+ (select (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| v_ArrVal_199) 0) (- 8)) 1) 18446744073709551616) 0))) (not (= (+ 16 |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.offset|) 0)) .cse1) (or (not (= |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.offset| 0)) .cse1) (forall ((|v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| Int)) (or (< |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| .cse0) (forall ((v_ArrVal_199 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| v_ArrVal_199) |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.base|))) (let ((.cse3 (mod (select .cse2 .cse4) 18446744073709551616))) (or (= 0 (mod (select .cse2 (+ (- 18446744073709551600) .cse3 |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.offset|)) 256)) (< .cse3 9223372036854775808))))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| Int)) (or (forall ((v_ArrVal_199 (Array Int Int))) (let ((.cse6 (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| v_ArrVal_199) |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.base|))) (let ((.cse5 (mod (select .cse6 .cse4) 18446744073709551616))) (or (< 9223372036854775807 .cse5) (= (mod (select .cse6 (+ 16 .cse5 |c_ULTIMATE.start_aws_byte_cursor_from_string_harness_~str~3#1.offset|)) 256) 0))))) (< |v_ULTIMATE.start_aws_byte_cursor_from_array_~#cur~2#1.base_16| .cse0))))) is different from false [2023-11-12 00:08:36,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913509275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:08:36,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1913028980] [2023-11-12 00:08:36,710 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2023-11-12 00:08:36,710 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:08:36,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:08:36,722 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:08:36,723 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs