./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:55,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:55,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:10:55,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:55,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:55,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:55,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:55,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:55,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:55,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:55,271 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:55,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:55,273 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:55,275 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:55,275 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:55,276 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:55,276 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:55,276 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:55,277 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:55,277 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:55,278 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:55,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:55,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:55,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:55,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:55,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:55,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:55,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:55,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:55,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:55,284 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:55,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:55,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:55,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:55,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:55,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:55,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:55,286 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:55,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:55,286 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:55,287 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:55,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:55,287 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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2023-11-12 00:10:55,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:55,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:55,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:55,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:55,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:55,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-12 00:10:58,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:59,770 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:59,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2023-11-12 00:10:59,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/data/ab856a893/3d93be3d78fc403182037dd3b3b8228a/FLAG58321c362 [2023-11-12 00:10:59,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/data/ab856a893/3d93be3d78fc403182037dd3b3b8228a [2023-11-12 00:10:59,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:59,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:59,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:59,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:59,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:59,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:59" (1/1) ... [2023-11-12 00:10:59,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca1d137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:59, skipping insertion in model container [2023-11-12 00:10:59,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:59" (1/1) ... [2023-11-12 00:11:00,207 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:00,621 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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-12 00:11:00,633 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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-12 00:11:02,160 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,161 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,162 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,163 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,165 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,182 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,183 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,185 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,186 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,659 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:11:02,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:11:02,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:11:02,668 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:11:02,674 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:11:02,676 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:11:02,678 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:11:02,681 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:11:02,683 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:11:02,685 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:11:02,992 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:02,993 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:03,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:03,144 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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2023-11-12 00:11:03,145 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_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2023-11-12 00:11:03,197 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,199 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,199 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,200 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,202 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,209 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,215 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,218 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,218 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,300 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:11:03,302 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:11:03,303 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:11:03,304 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:11:03,305 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:11:03,306 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:11:03,307 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:11:03,307 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:11:03,308 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:11:03,312 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:11:03,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-12 00:11:03,550 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,552 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:11:03,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-12 00:11:03,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:03,850 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,850 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,850 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,851 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,851 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,851 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,851 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,851 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,852 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,852 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,852 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,852 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,852 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,853 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,853 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,853 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,853 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,853 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:03,904 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:03,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03 WrapperNode [2023-11-12 00:11:03,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:03,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:03,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:03,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:03,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,255 INFO L138 Inliner]: procedures = 690, calls = 2654, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 934 [2023-11-12 00:11:04,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:04,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:04,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:04,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:04,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:04,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:04,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:04,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:04,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (1/1) ... [2023-11-12 00:11:04,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:04,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:04,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 00:11:04,510 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 00:11:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:11:04,510 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:11:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:11:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:11:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:11:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:11:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:11:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:11:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:11:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:11:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-12 00:11:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-12 00:11:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:11:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:11:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:11:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 00:11:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 00:11:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:11:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:11:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:11:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:11:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-12 00:11:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-12 00:11:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:11:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:11:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:11:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:11:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:11:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:11:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:11:04,793 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:04,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:06,451 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:07,087 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:07,088 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:11:07,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:07 BoogieIcfgContainer [2023-11-12 00:11:07,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:07,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:07,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:07,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:07,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:59" (1/3) ... [2023-11-12 00:11:07,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9c6116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:07, skipping insertion in model container [2023-11-12 00:11:07,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:03" (2/3) ... [2023-11-12 00:11:07,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9c6116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:07, skipping insertion in model container [2023-11-12 00:11:07,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:07" (3/3) ... [2023-11-12 00:11:07,107 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2023-11-12 00:11:07,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:07,129 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:11:07,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:07,211 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;@2b2f016f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:07,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:11:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-12 00:11:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:11:07,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:07,229 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 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, 1, 1, 1] [2023-11-12 00:11:07,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:07,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:07,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1795829775, now seen corresponding path program 1 times [2023-11-12 00:11:07,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:07,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739304363] [2023-11-12 00:11:07,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:07,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-12 00:11:25,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:25,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739304363] [2023-11-12 00:11:25,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739304363] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:25,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576152872] [2023-11-12 00:11:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:25,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:25,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:25,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:25,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416cd8bd-f9ea-4a24-8891-dbb8d3b3b7ad/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:11:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:26,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 138 conjunts are in the unsatisfiable core [2023-11-12 00:11:26,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:26,185 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2023-11-12 00:11:26,560 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 11 treesize of output 7 [2023-11-12 00:11:26,571 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 11 treesize of output 7 [2023-11-12 00:11:28,808 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:11:28,808 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:11:28,820 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:11:28,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:11:29,872 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 00:11:30,385 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 15 treesize of output 1 [2023-11-12 00:11:30,413 INFO L322 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-12 00:11:30,413 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2023-11-12 00:11:32,169 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:11:32,170 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2023-11-12 00:11:32,186 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-12 00:11:32,424 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8